差压流速计

【化】 differential pressure flow meter

差的英语翻译：

differ from; difference; dispatch; errand; mistake

压的英语翻译：

intimidate; keep under control; press; push down; shelve; suppress
【医】 prelum; pressure

流速计的英语翻译：

tachometer
【化】 currentmeter; hydrodynamometer; kinemometer; velocity-type flowmeter