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Hepcidin/ferroportin expression levels involve efficacy of pegylated-interferon plus ribavirin in hepatitis C virusinfected liver 被引量:4
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作者 Motoyuki Kohjima Tsuyoshi Yoshimoto +16 位作者 Munechika Enjoji Nobuyoshi Fukushima Kunitaka Fukuizumi Tsukasa Nakamura Miho Kurokawa Nao Fujimori Yusuke Sasaki Yasushi Shimonaka Yusuke Murata Susumu Koyama Ken Kawabe Kazuhiro Haraguchi Yorinobu Sumida Naohiko Harada Masaki Kato Kazuhiro Kotoh Makoto Nakamuta 《World Journal of Gastroenterology》 SCIE CAS 2015年第11期3291-3299,共9页
AIM:To investigate the relationship between the ironmetabolism-related gene expression profiles and efficacy of antiviral therapy in chronic hepatitis C patients.METHODS:The hepatic expression profile of ironmetabolis... AIM:To investigate the relationship between the ironmetabolism-related gene expression profiles and efficacy of antiviral therapy in chronic hepatitis C patients.METHODS:The hepatic expression profile of ironmetabolism-related genes was analyzed and its association with virological response to pegylated-interferon plus ribavirin combination therapy was evaluated.A hundred patients with chronic hepatitis C(genotype1b,n = 50; genotype 2,n = 50) were enrolled and retrospectively analyzed.Liver biopsy samples were subjected to quantitative polymerase chain reaction for iron-metabolismrelated genes and protein expression(Western blotting analysis) for ferroportin.As a control,normal liver tissue was obtained from 18 living donors of liver transplantation.Serum hepcidin level was measured by sensitive liquid chromatography/electrospray ionization tandem mass spectrometry.RESULTS:Iron overload is associated with liver damage by increasing oxidative stress and hepatitis C virus(HCV)is reported to induce iron accumulation in hepatocytes in vivo.Conversely,iron administration suppresses HCV replication in vitro.Therefore,the association between HCV infection and iron metabolism remains unclear.Compared with controls,patients had significantly higher gene expression for transferrin,iron-regulatoryproteins 1 and 2,divalent metal transporter 1,and ferroportin,but similar for transferrin receptors 1 and2,and hepcidin.When the expression profiles were compared between sustained virological response(SVR)and non-SVR patients,the former showed significantly lower transcription and protein expression of hepcidin and ferroportin.Expression of hepcidin-regulating genes,BMPR1,BMPR2,and hemojuvelin,was significantly increased,whereas BMP2 was decreased in HCV-infected liver.BMPR2 and hemojuvelin expression was significantly lower in the SVR than non-SVR group.HCV infection affects the expression of iron-metabolism-related genes,leading to iron accumulation in hepatocytes.CONCLUSION:Decreased expression of hepcidin and ferroportin in SV 展开更多
关键词 Chronic HEPATITIS C Iron-metabolism HEPCIDIN ferro
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Chemin d’avenir
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《中国与非洲(法文版)》 2024年第1期42-43,共2页
Le projet ferroviaire entrepris par China Railway Signal and Communication Corp.International(CRSC)promet de stimuler l’économie du Malawi en générant des centaines d'emplois.
关键词 LAW ferro ENT
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Experimental Ferrogravitational Field around Untwisting Closed Superconductor 被引量:1
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作者 Robert A. Sizov 《Journal of Modern Physics》 2020年第11期1807-1826,共20页
The study by the author of magnetic scattering neutrons in the structures of ferrimagnets, as well as his experiments with the separation of magnetic charges in dipole pairs ±g in magnetic field, showed that fund... The study by the author of magnetic scattering neutrons in the structures of ferrimagnets, as well as his experiments with the separation of magnetic charges in dipole pairs ±g in magnetic field, showed that fundamental magnetic particles (magnetic charges) are real structural components of atoms and substance. It is the magnetic poles, and not the moving electric charges are the direct sources of all magnetic fields and magnetic manifestations in Nature. Basic reasons of ignoring the magnetic fundamental particles by world physical theory, for almost 150 years, are the ultra-harsh confinement of these particles in substance which radically is different from the confinement electrons, as well as the vicious concept of the electric magnetism Maxwell. Rotating magnetic dipoles in conductors which are untwisted by electric current, are direct sources of the vortex magnetic field rot<em><strong>H</strong></em>. One should also expect the formation of a vortex electric field rot<em><strong>E </strong></em>forming by rotating electric dipoles which are untwisted by the current of magnetic charges. This article provides an experimental answer to the question: what field is formed around a conductor if joint direct currents of electric<em> <strong style="white-space:normal;"><em>J</em></strong></em><sub>e</sub> and magnetic<strong><em> J</em></strong><sub>g</sub> charges are passed through it? The author’s experiments have shown that in this case the vortex electromagnetic current is realized which manifests itself as the vortex electromagnetic (gravitational) field. It is possible to implement such a process, according to the results of the author’s research, exclusively in superconductors. The vector character of the gravitational field is in many respects similar to the vortex magnetic field which makes it possible to introduce such it states as paragravitation and ferrogravitation into representations. To create joint currents of electric and magnetic charges, the author used the inertial forces of these particl 展开更多
关键词 Magnetic Charges Magnetons Antimagnetons Magnetic Dipoles True Antielectrons S-Gravitons Gravitational Field ferro- and Paragravitation Gravitational “Dark Energy” Gravitational Levitation
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陶瓷原料中高含量钛、铁的快速连续测定 被引量:3
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作者 么琳 《陶瓷学报》 CAS 2002年第1期42-43,共2页
研究提出了一份试液中 ,用两种指示剂、一种标准溶液快速连续测定钛、铁的新方法。即在含有少量盐酸的硫、磷混酸介质中 ,用铝片将钛 (Ⅳ )、铁 (Ⅲ )分别还原成钛 (Ⅲ )、铁 (Ⅱ ) ;然后以中性红作指示剂 ,在锰 (Ⅱ )的催化下 ,用重铬... 研究提出了一份试液中 ,用两种指示剂、一种标准溶液快速连续测定钛、铁的新方法。即在含有少量盐酸的硫、磷混酸介质中 ,用铝片将钛 (Ⅳ )、铁 (Ⅲ )分别还原成钛 (Ⅲ )、铁 (Ⅱ ) ;然后以中性红作指示剂 ,在锰 (Ⅱ )的催化下 ,用重铬酸钾标准溶液滴定铁(Ⅱ )。在陶瓷原料高含量钛。 展开更多
关键词 氧化还原滴定 陶瓷原料 快速连续测定 指示剂
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Interaction of Microwave Magnetic Field With Materials
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作者 Yoshikawa Noboru Tomotsugu Kato Shoji Taniguchi 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2012年第S2期683-686,共4页
Microwave is an electromagnetic wave and consists of the electric and the magnetic fields.The microwave electric field interacts with dielectric materials and heat is generated due to the dielectric loss,which is a ma... Microwave is an electromagnetic wave and consists of the electric and the magnetic fields.The microwave electric field interacts with dielectric materials and heat is generated due to the dielectric loss,which is a major mechanism of microwave heating of water.Microwave magnetic field interaction with materials has to be discussed in terms of two different mechanisms.The first class is the induction current generation in(mainly)metallic materials, which gives rise the Joule heat,although the penetration distance into metals are limited within a microns or less.In this article,a characteristic application of microwave induction heating of metal thin film is presented.The second class is the microwave interaction with the ferro(or ferri)magnetic materials.Effect of ferromagnetic resonance(FMR)is taken into consideration as the fundamental heating mechanism of the ferro-magnetic materials.The FMR heating behavior of Fe_3O_4 is presented.Discussion is made for the phenomena observed in the experiments. 展开更多
关键词 MICROWAVE magnetic field HEATING INDUCTION thin film ferro magnetic resonance
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In-situ FTIR Spectroelectrochemical and Electrochemical Studies of Ferrocene and Derivatives at a Platinum Electrode
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作者 PengDu BaoKangJIN +1 位作者 JiaXiangYANG XiangQinLIN 《Chinese Chemical Letters》 SCIE CAS CSCD 2004年第2期204-207,共4页
Redox mechanism of ferrocene, acetylferrocene, ferrocenyl cinnamenyl ketone at a platinum electrode was studied with cyclic voltammetry (CV) and in-situ Fourier transform infrared (FTIR) spectroelectrochemistry. The ... Redox mechanism of ferrocene, acetylferrocene, ferrocenyl cinnamenyl ketone at a platinum electrode was studied with cyclic voltammetry (CV) and in-situ Fourier transform infrared (FTIR) spectroelectrochemistry. The IR bands in the range of 2000-1000 cm-1 attributed to the stretching and ring vibrations of these materials show the main spectral changes in the processes. 展开更多
关键词 in-situ FTIR spectroelectrochemistry ferrocene(FcH) acetylferrocene(AFc) ferro- cenyl cinnamenyl ketone(FcCK). I
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Transfer of manganese and ferro ions by manganese bacteria
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作者 Shi Junxian and Chen Zhongyuan (The Second institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China) 《Acta Oceanologica Sinica》 SCIE CAS CSCD 1996年第3期355-363,共9页
The experimental results of the redox of manganese and ferro ions by manganese bacteria are described. Under the aerobic conditions, the manganese bacteria can oxidate Mn2+ into Mn4+. In the course of the manganese ba... The experimental results of the redox of manganese and ferro ions by manganese bacteria are described. Under the aerobic conditions, the manganese bacteria can oxidate Mn2+ into Mn4+. In the course of the manganese bacteria multiplication, the continual increaes of environmental pH is advantageous to the oxidation of manganese and the rise of environmental temperature helps the bacteria to speed the oxidation of manganese ions. The manganese bacteria can fastly oxidate Fe2+ in the culture containing low vaient ferro into Fe3+, its oxidation speed being faster than that of manganese oxide. Under the anaerobic conditions,the manganese bacteria can reduce high valent ferro in solutioninto low valent ferro and distinctly lower the environmental pH. 展开更多
关键词 TRANSFER MANGANESE manganese bacteria. ferro ions
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Application of wavelet transform to detection of ferro-resonance
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作者 王建赜 纪延超 +1 位作者 冉启文 柳焯 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2000年第2期39-42,共4页
The ferro resonance caused by an electromagnetic potential transformer is a frequently occurring internal overvoltage in the power distribution network, and it threatens the safe operation of the network. Fast and acc... The ferro resonance caused by an electromagnetic potential transformer is a frequently occurring internal overvoltage in the power distribution network, and it threatens the safe operation of the network. Fast and accurate detection is the prerequisite for suppression and elimination of ferro resonance. Wavelet transform provides a powerful tool for analysis of nonstationary signals. This paper applies wavelet transform to detect ferro resonance. Analysis results show that it makes extraction of failure information accurate, and fast algorithm makes detection real time. 展开更多
关键词 WAVELET TRANSFORM ferro RESONANCE POWER system
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The Gravito-Chemical Bond and Structures of Hydrocarbons and Water Molecules with Real Magnetic Charges
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作者 Robert A. Sizov 《Open Journal of Physical Chemistry》 2021年第4期220-240,共21页
Experimental and theoretical studies of the author (period: 1968-present) have shown that true sources of </span><span style="font-family:"">the </span><span style="font-family... Experimental and theoretical studies of the author (period: 1968-present) have shown that true sources of </span><span style="font-family:"">the </span><span style="font-family:"">magnetic field are magnetic fundamental particles (magnetic charges), and not moving electrons. The main reason for <span>ignoring real magnetic charges, as well as true antielectrons in physical</span> science is the hard conditions for confinement of these particles in atoms and substance</span><span style="font-family:"">s</span><span style="font-family:"">, which </span><span style="font-family:"">is </span><span style="font-family:"">radically different from the confinement of electrons. Magnetic charges together with electric charges form the shells atoms which are <span>electromagnetic, and not electronic. Namely</span></span><span style="font-family:"">,</span><span style="font-family:""> electromagnetic shells are</span><span style="font-family:""> sources of gravitational field which is </span><span style="font-family:"">a </span><span style="font-family:"">vortex electromagnetic field and de<span>scribed by the vortex</span></span><span style="font-family:""> rot [<i>E</i> - <i>H</i>]</span><span style="font-family:"">. Depending on the state polarization o</span><span style="font-family:"">f vortex vectors </span><span style="font-family:"">rot [<i>E</i> - <i>H</i>]</span><span style="font-family:""> in compositions of atomic gravitational fields it </span><span style="font-family:"">is </span><span style="font-family:"">subdivided into paragravitational (PGF) and ferrogravitational fields </span><span style="font-family:"">(FGF). The overwhelming number of atoms emits PGF. Between the masses (bodies, atoms, nucleons and others) emitting PGF areas of negative gravitational “Dark Energy” are realized the forces of which press the masses towards each other. Namely</span><span style="font-family:"">,</span><span style="font-family:""> the compression of atoms by the forces of paragravitational “Dark Energy” underlies th 展开更多
关键词 Magnetic Charges True Antielectrons S-Gravitons Gravitational Field ferro- and Paragravitation Gravitational Levitation Gravito-Chemical Bond Hydrocarbon and Water Molecules Heavy and Light the Water Clusters
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火焰原子吸收法与邻菲口罗啉光度法测定水中铁的方法比对
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作者 张韵华 张锐 《云南环境科学》 2004年第2期63-64,共2页
火焰原子吸收法与邻菲口罗啉光度法测定水和废水中铁具有精密度高、准确度好的持点。用两种方法测定的考核样为1 37mg/L及1 35mg/L,均为合格。两种方法均具有很强的可比信,都能满足水和废水中铁的测定,测定结果准确、可靠。
关键词 火焰原子吸收法 邻菲啰啉光度法
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China's Economy and Stock
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作者 Zhong Weike 《China Chemical Reporter》 2007年第8期4-4,共2页
On February 27,the China’s stock index dropped sharply by 9% from the day before,triggering a worldwide slide.Some media called it China Stock Woes.We do notknow if the foreign hot money will stay in Chinese stock no... On February 27,the China’s stock index dropped sharply by 9% from the day before,triggering a worldwide slide.Some media called it China Stock Woes.We do notknow if the foreign hot money will stay in Chinese stock now.Some experts thoughtthe woes were caused by high growth in 2006.In a word,as discussed in CCR’sFebruary 6th issue,China’s stock market is linked with stocks worldwide more 展开更多
关键词 STOCK dropped sharply SLIDE MONEY TRIGGERING ferro
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Tungsten Export Price Raised Due to Customs Tax Regulations
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《China Nonferrous Metals Monthly》 2007年第1期5-6,共2页
Affected by the export tax rise, China’s tungsten export price rose by about 40 per cent in the first 10 months of 2006. The average price of Ammonium Paratungstate (APT) was US$23,000/MT, up by 43.5 per cent year-o... Affected by the export tax rise, China’s tungsten export price rose by about 40 per cent in the first 10 months of 2006. The average price of Ammonium Paratungstate (APT) was US$23,000/MT, up by 43.5 per cent year-on-year, and that of ferro-tungsten, blue tungsten oxide as well as yellow oxide also increased by 32.4 per cent to US$24,000/MT, 27.4 per cent to US$25,000/MT and 42.6 per cent to US$26,000/MT respectively. 展开更多
关键词 CUSTOMS EXPORT TUNGSTEN ferro YELLOW REBATE RAISIN
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Ferro-Mo Sales Growth Brings up Concern for Resource Issue
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《China Nonferrous Metals Monthly》 2004年第10期5-6,共2页
Since the beginning of this year,China’s exportof ferro-molybdenum has increased by someconsiderable amount,leading to uncontrolledmining of the molybdenum resources. Customsstatistics show that in the first half of ... Since the beginning of this year,China’s exportof ferro-molybdenum has increased by someconsiderable amount,leading to uncontrolledmining of the molybdenum resources. Customsstatistics show that in the first half of this year,along with the price increase of ferro-molybdenum on the international market,China’s export of ferro-molybdenum grew by13.7 per cent year on year to 17,885 tons withthe trade volume reaching US$239,000,000,upby 1.5 times.Among the total export,Liaoningprovince became the largest exporter of ferro-molybdenum with 11,829 tons and a value ofUS$162,000,000, up by 48.7 per cent and 2. 展开更多
关键词 ferro MOLYBDENUM BEGINNING REACHING forts OWNED Li
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RESISTIVITY ANOMALY AT THE ONSET TEMPERATURE OF SPIN-GLASS-LIKE STATE IN (Pd_(0.9965)Fe_(0.0035))_(0.95)Mn-(0.05)
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作者 赵忠贤 张殿琳 +1 位作者 林淑嫒 沈志工 《Chinese Science Bulletin》 SCIE EI CAS 1982年第9期936-938,共3页
Some authors have studied a series of (Pd0.9965 Fe0.0035)1-xMnx alloys which exhibit distinctly different magnetic properties depending upon the Mn concentration x. It is attributed to the competing interaction in mag... Some authors have studied a series of (Pd0.9965 Fe0.0035)1-xMnx alloys which exhibit distinctly different magnetic properties depending upon the Mn concentration x. It is attributed to the competing interaction in magnetic systems, In general, for a large number of alloy systems with mixed ferro-antiferromagnetic interactions, the competition leads to a diversity of magnetic struetures and critical phenomena. 展开更多
关键词 ferro attributed distinctly competing SPIN COMPETITION RESISTIVITY milar thereby longer
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DISCOVERY OF FERRIC CONCRETIONS IN THE NORTH PART OF THE EAST CHINA SEA
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作者 朱而勤 《Chinese Science Bulletin》 SCIE EI CAS 1983年第11期1572-1573,共2页
Ferric concretions have been discovered in the surface sediments from the southern part of the Huanghai Sea to the northern part of the East China Sea in June, 1981. Their morphology can be classified into three kinds... Ferric concretions have been discovered in the surface sediments from the southern part of the Huanghai Sea to the northern part of the East China Sea in June, 1981. Their morphology can be classified into three kinds: gelatins, se- 展开更多
关键词 EAST classified distr NODULES ferro GENIE 幼公 delta GELATIN MANGANESE
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DETERMINATION OF X-RAY POWDER DIFFRACTION DATA OF LiTaO_3
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作者 郭常霖 《Chinese Science Bulletin》 SCIE EI CAS 1980年第10期856-857,共2页
The single crystal of LiTaO3 is an important ferro-electric crystal, pcssessing comparatively better electro-optic, piezo-electric and thermo-electrio properties. It has been put widely into applications.Using X-ray p... The single crystal of LiTaO3 is an important ferro-electric crystal, pcssessing comparatively better electro-optic, piezo-electric and thermo-electrio properties. It has been put widely into applications.Using X-ray powder diffraction and neutron diffraction methods, Abraham et al. 展开更多
关键词 ferro neutron OPTIC ABRAHAM thermo HEXAGONAL trigonal MILLING PRESSING PURITY
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China Nonferrous Metal Strengthens Rare Earth Business
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《China Chemical Reporter》 2008年第27期9-9,共4页
China Nonferrous Metal Co.,Ltd.(SZ:000758)announced on August 2nd that the company will form a joint venture named China Nonferrous Metal South Rare Earth(Xinfeng)Co.,Ltd.,partnering
关键词 VENTURE Jiangsu GUANGDONG HOLDING 面正 贯渠 ferro
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铁基复合材料的现状和发展 被引量:41
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作者 张静 潘复生 陈万志 《材料导报》 EI CAS CSCD 1995年第1期67-71,共5页
综述了铁基复合材料的研究和应用现状、制备方法、发展趋势。
关键词 铁基复合材料 复合材料
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配电网电压互感器铁磁谐振的特点与抑制 被引量:43
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作者 翁利民 陈灵欣 靳剑峰 《继电器》 CSCD 北大核心 2004年第20期40-42,共3页
从电磁式电压互感器铁芯饱和引起的铁磁谐振的机理出发,介绍了铁磁谐振的特点与危害,重点对抑制铁磁谐振的常见实用方法作了分析,并得出了结论:对10kV中性点绝缘系统,采用在PT一次侧中性点串接电阻型消谐器是比较成功的,其结构简单,安... 从电磁式电压互感器铁芯饱和引起的铁磁谐振的机理出发,介绍了铁磁谐振的特点与危害,重点对抑制铁磁谐振的常见实用方法作了分析,并得出了结论:对10kV中性点绝缘系统,采用在PT一次侧中性点串接电阻型消谐器是比较成功的,其结构简单,安装方便;35kV系统由于一般出线较长,增装消弧线圈是有效的,对系统的安全运行十分有利。 展开更多
关键词 铁磁谐振 配电网 电磁式电压互感器 中性点绝缘系统 接电 铁芯 消弧线圈 特点 结论 出线
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电力系统铁磁谐振的危害、鉴别及其防治措施 被引量:40
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作者 张向东 张华龙 李英 《电力学报》 2002年第4期283-286,共4页
简述了电力系统铁磁谐振现象的危害 ,分析了铁磁谐振与其他故障的不同之处及鉴别方法 。
关键词 电力系统 铁磁谐振 判别 消谐措施
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