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to phrases
guide hole
el. 导眼
eng.geol. 导向孔
expl. 孔
hydroel.st. 超前孔
met. 导向钻孔; 预钻荒孔
plast. 导销孔
tech. 导向钻孔; 导孔; 超前炮眼
guide hole
: 10 phrases in 5 subjects
Computer numerical control4
Drilling2
Hydroelectric power stations2
Technology1
Textile industry1

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