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阀针 fázhēn
chem. valve inside plunger pin
hydroel.st. valve needle
阀针: 158 phrases in 24 subjects
Agriculture1
Architecture2
Automobiles38
Chemistry3
Compressors1
Drilling4
Electronics3
General1
Hydroelectric power stations9
Mechanic engineering3
Mechanics1
Metallurgy1
Nautical1
Nuclear and fusion power1
Oil / petroleum5
Oil and gas technology1
Plastics6
Rail transport2
Refrigeration8
Space1
Technology61
Textile industry1
Water resources3
Wind Energy1