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底岩 dǐyán
eng.geol. bed-rock
hydroel.st. bed rock; underlying rock
oil sub terrane
soil. bedrock
tech. base rock; bottom stone; hard seat; shelf; firm ground
archit. bed rock; bedrock
底岩: 120 phrases in 15 subjects
Anatomy1
Architecture1
Desert science2
Drilling8
Earth sciences6
Electronics2
Engineering geology5
Explosives and Explosive Ordnance Disposal5
General7
Geology4
Hydroelectric power stations4
Oil / petroleum28
Otorhinolaryngology1
Technology45
United Nations1