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由昆明有色冶金设计研究院和云南金马矿山机械厂联合研究成功的“矿车不粘结技术”在1983年10月由中国有色金属工业总公司组织了鉴定,认为该技术“能适应大部份矿山有轨运输的特点和需要,是解决当前矿车粘结问题的重大突破,属于国内首创,经查阅当前的世界技术情报,国外尚无同类技术。……”
By the Kunming Nonferrous Metallurgical Design and Research Institute and Yunnan Jinma Mining Machinery Plant joint successful study of the “tub non-bonding technology” in October 1983 by the China Nonferrous Metals Industry Corporation organized the identification that the technology “to adapt to most Mine rail transport characteristics and needs, is to solve the current mine car bond a major breakthrough, belonging to the domestic initiative, after reviewing the current world of technical intelligence, there is no foreign technology ...... ”