在毛主席革命路线指引下,在批林批孔深入发展的大好形势下,在上级党委的正确领导和长沙矿山研究院等兄弟单位大力协助下,我矿继七三年八月研制成功第一台井下牙轮钻机之后,七四年九月又研制成功适合我矿具体条件,具有小、巧、轻等特点的第二台井下牙轮钻机。试车证明,各部运转正常,性能良好,完全达到了设计要求,并已投入井下试验。 Under the guidance of Chairman Mao’s revolutionary line and with the help of the correct leadership of the Party committees at the higher levels and the fraternal units such as the Changsha Research Institute of Mines and Minerals under the great situation of deepening the development of the proletariat and the bureaus, the mine successfully developed its first success in August 1983 After the Taiwan downhole drilling rig, in September 1974 and again developed a suitable mine for my specific conditions, with small, clever, light and so on a second downhole drilling rig. Commissioning proved that the ministries were operating normally with good performance and fully met the design requirements and have been put into underground tests.