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风雨五十年,沧桑迎盛世,在欢庆国庆50周年时,回首煤田钻探工作发展的漫漫历程不禁感慨万千。建国初期,我国煤田钻探只有少量陈旧的手把式钻机。随着煤田地质勘探不断发展,开始独立自主地设计和生产钻探设备。制造出了转速高、调速范围广的液压立轴式钻机和结构紧凑、变
Fifty years of wind and rain, the vicissitudes of life welcome the flourishing world, celebrating the 50th anniversary of the founding of the People’s Republic of China, looking back at the long process of coal drilling development can not help feeling filled with emotion. In the early years of the founding of New China, only a few old hand-held drilling rigs were drilled in coalfields in our country. With the continuous development of coalfield geological exploration, began to independently design and production of drilling equipment. To create a high speed, a wide range of hydraulic vertical shaft drilling rig and compact structure, change