In measuring the elemental and isotopic compositions of two interplanetary dust particles(IDPs) obtained from NASA (National Aeronautics and Space Administration) JohnsonSpace Center, USA, with a secondary ion mass sp...In measuring the elemental and isotopic compositions of two interplanetary dust particles(IDPs) obtained from NASA (National Aeronautics and Space Administration) JohnsonSpace Center, USA, with a secondary ion mass spectrometer, lithium and boron isotopeshave been discovered.展开更多
基金A joint program of the Chinese Academy of Sciences and NASA of USA.
文摘In measuring the elemental and isotopic compositions of two interplanetary dust particles(IDPs) obtained from NASA (National Aeronautics and Space Administration) JohnsonSpace Center, USA, with a secondary ion mass spectrometer, lithium and boron isotopeshave been discovered.
