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auger bit
archit. 钻头
bridg.constr. 螺旋钻头
CNC 麻花钻
eng.geol. 螺旋钻头
oil 麻花钻头
tech. 木螺钻; 木螺锥; 短木钻
auger bit
: 9 phrases in 2 subjects
Engineering geology3
Technology6