弯管流量计 elbowmeter ; LY-WG ; Pipe flow meter ; WKWG

文氏管流量计 Venturi meter

毛细管流量计 capillary flowmeter

皮托管流量计 Pitot Tubes Flowmeter ; Pitot tube meter

双管压差流量计 differential twin-flowmeter ; flowmeter

弯管流体压力计 sympiesometer

管肘流速计 [仪] pipe elbow meter

晶体管电流计 transistor current meter

物流管理会计 logistics management accounting