• The implementation of accurate boom location of drilling Jumbo at the driving place is a key link to improve the drilling-blasting effects.

    掘进工作面上实现凿岩台车准确定位提高凿岩爆破效果重要环节

    youdao

  • The implementation of accurate boom location of drilling Jumbo at the driving place is a key link to improve the drilling-blasting effects.

    掘进工作面上实现凿岩台车准确定位提高凿岩爆破效果重要环节

    youdao

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