1·On the basis of theoretical linear model, the paper studies the influence of input flow on operating parameters of shock mechanism for hydraulic rock drill, and a series of brief formulae are derived.
在理想线性模型的基础上，研究了输入流量对液压凿岩机冲击机构工作参数的影响，得到了一组简明公式。
2·Therefore this system is a effective means for developing a hydraulic rock drill.
因此该系统是研制液压凿岩机的重要辅助手段。
3·This paper designed a new type of muffler for pneumatic rock drill with the theory of impedance.
利用阻抗消声原理为气动凿岩机设计了一种新型的消声罩。
4·The paper, first puts forward a rock drill should not be studied as a single object.
在对凿岩系统参数匹配进行研究时，首次从理论上提出了不应将凿岩机单独作为一个研究对象。
5·The process, features, performance of infiltrated layer and its application to rock drill of QPQ Combined Salt Bath Treatment Technology are described in the article.
文章介绍了Q PQ盐浴复合处理技术的工艺方法、特点、渗层性能及在凿岩机上的应用情况。