In this paper the operating principle, structural features and applications in production of YYG series of hydraulic drills will be described.
本文介绍了YYG系列液压凿岩机的工作原理，结构特征以及生产应用取得的结果。
In this paper the operating principle, structural features and applications in production of YYG series of hydraulic drills will be described.
本文介绍了YYG系列液压凿岩机的工作原理，结构特征以及生产应用取得的结果。
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