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辅助阀
dril.
auxiliary valve
;
utility valve
steel.
pilot valve
tech.
booster valve
;
jockey valve
;
service valve
辅助〔工作〕阀
chem.
service valve
辅助 阀:
29 phrases
in 7 subjects
Architecture
1
Automobiles
6
Aviation
4
Hydroelectric power stations
1
Metallurgy
1
Shipbuilding
5
Technology
11
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