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回流阀 huíliúfá
avia. recirculation valve
eng.geol. backflow valve
hydroel.st. reflux valve; return valve
oil reverse flow valve
plast. reversing valve
回流〔回水〕阀
mech.eng. return valve
回流阀: 28 phrases in 9 subjects
Agriculture1
Automobiles2
Drilling2
Hydroelectric power stations2
Metallurgy2
Oil / petroleum2
Plastics1
Shipbuilding1
Technology15