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序言本文是以矿山研究所和勃勒钻孔、压气技术公司共同协作的一项科研成果为基础而编写的。这项合作的目的是想通过理论研究和实验,有助于发展关于冲击凿岩的理论。在这里特别注意到了,到目前为止在文献中
Preface This article was prepared on the basis of a collaborative effort between the Institute of Mines and the Borehole and Compressor Technologies. The purpose of this cooperation is to seek to develop the theory of percussive rock drilling through theoretical research and experimentation. This is especially noticed here, so far in the literature