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对KQ— 150型潜孔钻机干式除尘系统的局部结构进行了改进设计 ,改善了钻机的除尘性能 ,取得了良好的社会效益和经济效益
The partial structure of the dry dust removal system of KQ-150 DTH drilling rig has been improved to improve the dust removal performance of the drilling rig and achieved good social and economic benefits