英语翻译The drilling pattern(炮眼布置) in which the holes to receive the explosives(炸药) are drilled(凿岩、钻眼) into the working face is designed so that:the holes are easy to drill ,the minimum total quantity of explosive is req
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英语翻译The drilling pattern(炮眼布置) in which the holes to receive the explosives(炸药) are drilled(凿岩、钻眼) into the working face is designed so that:the holes are easy to drill ,the minimum total quantity of explosive is req
英语翻译
The drilling pattern(炮眼布置) in which the holes to receive the explosives(炸药) are drilled(凿岩、钻眼) into the working face is designed so that:the holes are easy to drill ,the minimum total quantity of explosive is required,and the peripheral of the space left after the blast comforms as nearly as possible to the required tunnel section(巷道断面)
英语翻译The drilling pattern(炮眼布置) in which the holes to receive the explosives(炸药) are drilled(凿岩、钻眼) into the working face is designed so that:the holes are easy to drill ,the minimum total quantity of explosive is req
钻井模式在该洞接收钻成炸药工作面的设计,使:孔很容易钻,炸药总量最低要求,并在爆炸后留下的空间,为近周边comforms尽可能到所需的一段隧道