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为了进一步提高YN—23型内燃凿岩机的性能，在国家计委地质局的领导下，组织了由勘探技术研究所负责的，沈阳探矿机械厂、天津内燃机研究所、无锡钻探工具厂共四个单位参加的“三结合”攻关小组，对原东方红—23型内燃凿岩机进行了研究改进。在局科技组和两厂、两所党委直接领导和关怀下，以路线斗争为纲，深入开展批林批孔，充分发动和依靠群
In order to further improve the performance of YN-23 internal combustion rock drill, under the leadership of the State Planning Commission Geological Bureau, organized by the Institute of Exploration Technology, Shenyang Exploration Machinery Plant, Tianjin Internal Combustion Engine Research Institute, Wuxi drilling tool plant a total of four units Participated in the “three combination” research team, the original Dongfanghong -23 type internal combustion rock drill was improved. Under the direct leadership and care of the science and technology group and the two factories and two party committees, taking the line struggle as the key link, launching the "