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井泵
hydroel.st.	well pump

井 泵: 179 phrases in 21 subjects

Agriculture	3
Chemistry	2
Construction	1
Drilling	13
Earth sciences	1
Ecology	2
Electronics	7
Engineering geology	7
Environment	1
Explosives and Explosive Ordnance Disposal	2
General	1
Hydroelectric power stations	7
Mechanics	1
Metallurgy	4
Mining	3
Oil / petroleum	29
Rail transport	2
Refrigeration	2
Technology	88
Water resources	2
Wind Energy	1