摘要
本文介绍了在封闭管道中可用于污水流量测量的时差式和多谱勒超声波流量计的原理、主要性能及其应用 .
This paper introduces transit time and doppler ultrasonic flowmenter's priciple,main character and application,that is applied to seal pipe's foul water flow.
出处
《环境与开发》
2000年第4期46-46,共1页
Environment and Exploitation
