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海底钻探
 海底钻探
earth.sc. ocean floor drilling
econ. the offshore drilling
| 工程
 工程
gen. works
hydroel.st. engineering

to phrases
海底钻探
earth.sc. ocean floor drilling
econ. the offshore drilling
tech. marine drilling; ocean-floor drilling; offshore boring; offshore drilling; submarine drilling
海底钻探: 8 phrases in 2 subjects
Engineering geology2
Technology6