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据贵州省科学技术情报所《科技成果简报》一九七九年第一期报道,贵州省九个农机单位联合研制的QYZ-42型岩石钻,已由省农机局主持进行了鉴定,并投入了批量生产。该岩石钻是一种在岩石上钻炮孔的机具,主要适用于农田基本建设、兴修水利和筑路等。该机结构简单,易于使用与维修,重量轻,搬移灵便;材质和工艺要求不高,
According to the first report of Science and Technology Information Briefing of Guizhou Science and Technology Information Institute in 1979, QYZ-42 rock drill, jointly developed by nine agricultural units in Guizhou Province, has been appraised by Provincial Agricultural Machinery Bureau and put into operation Mass production. The rock drill is a drill hole in the rock machinery, mainly for farmland infrastructure, water conservancy and road construction. The machine is simple in structure, easy to use and maintenance, light weight, moving handy; less demanding materials and processes,