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to phrases
顶
置
阀
tech.
head valve
顶〔上〕阀
mech.eng.
overhead valve
顶阀
met.
overhead valve
顶 阀:
23 phrases
in 10 subjects
Chemistry
2
Drilling
1
General
1
Hydroelectric power stations
1
Mechanic engineering
2
Metallurgy
6
Oil / petroleum
2
Rail transport
1
Technology
6
Wind Energy
1
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