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取岩心 qǔ yánxīn
dril. core
UN, geol. coring
取岩心: 64 phrases in 12 subjects
Architecture1
Construction2
Desert science1
Drilling20
Earth sciences4
Explosives and Explosive Ordnance Disposal2
General5
Geophysics1
Mining1
Oil / petroleum21
Technology4
Water resources2