螺桨流速仪 propeller current meter

螺桨流速计 Current-meter propeller

螺旋桨式流量计 propeller flowmeter ; propeller-type flowmeter ; type flowmeter ; [流] screw-type flowmeter

螺旋桨整流帽 nose cone

螺旋桨尾流 [航] [船] slip stream ; propeller race ; discharge screw current ; screw current

螺旋桨流 screw race ; screw current

螺旋桨滑流 propellerrace ; propeller slipstream

整流螺旋桨 counterpropeller

螺旋桨导流罩 propeller cone ; fairwater sleeve