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排间距两排炮孔之间距。必须区分钻孔间距 Sd 和爆破孔间距 Sb,参见 spacing
expl. row spacing
排间距两排炮孔之间距。必须区分钻孔间距〈Sd〉和爆破孔间距〈Sb〉。参见 row spacing
expl. spacing of rows
排间距
tech. row spacing
排 间距: 21 phrases in 9 subjects
Advertising1
Agriculture4
Architecture1
General2
Hydraulics1
Oil / petroleum1
Technology8
Water resources2
Wind Energy1