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冲击钻探
el.
chum drilling
eng.geol.
percussion boring
tech.
percussion drilling
;
percussive drilling
water.res.
churn boring
冲击钻探〔孔〕
coal.
percussion drilling
construct.
percussion boring
冲击钻探〔钻孔〕
construct.
percussive boring
冲击钻探:
19 phrases
in 4 subjects
Architecture
1
Business
1
Engineering geology
6
Technology
11
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