- directional current metre
- 定向: directional; orient; orienta ...
- 流速仪: current meter
- 无线电流向流速仪: radio current meter
- 流速仪: current log; current meter; currentmeter; flow-velocity meter; hydrodynamometer; hydrometer flow meter; hydrometric flow meter; hydrometric propeller; potamometer; velocity meter
- 横向流速: lateral velocity
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