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底口
compr. basal-hole; base-hole; bottom hole
底口
: 129 phrases in 29 subjects
Agriculture1
Architecture2
Automobiles1
Aviation1
Bridge construction1
Continuous casting1
Dentistry1
Drilling14
Earth sciences1
Electronics3
Engineering geology3
Hydroelectric power stations3
Hydrology1
Metallurgy8
Mining1
Nautical2
Navigation2
Nursing2
Oceanography & oceanology1
Oil / petroleum8
Otorhinolaryngology2
Securities1
Shipbuilding2
Surgery1
Technology45
Telecommunications1
Tennis1
Textile industry18
Thermal Energy1