超声流速仪 meaning in English

ultrasonic current meter

( 2 ) before and after the frames are placed the velocity vertical distribution in the same cross - section are measured by adv . the results indicate that after the frames are placed the mean velocity and turbulent intensity near bed are reduced , and vertical distribution of turbulent intensity is more uniform
( 2 )采用adv超声流速仪对投放框架群前后同一断面的垂线流速分布测量表明：水槽投放四面体后，不但可以降低近底区的时均流速、紊动强度，而且均化了紊动强度的垂线分布。