Secondary rock breaking is important production link in mines.

矿岩二次破碎是矿山重要的生产环节.

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There is a huge rock breaking through the snows.

一块巨大的岩石凸出在雪地上.

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On - going water spraying or dust enclosure should be applied during drilling or rock breaking.

打石或钻探期间,需经常洒水或以围封防止尘埃飞扬.

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A set of new methods of evaluating rock - breaking effect was developed on the basis of ABAQUS.

开发了一套基于ABAQUS有限 元仿真分析评价齿形破岩效果新方法.

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