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水刹车在深孔地质勘探钻机上已经获得满意的使用效果,在一些国家里已经有了标准化、系列化产品。当前在国内的水刹车设计中多数采用以
Water brakes have been used satisfactorily in deep hole geological exploration rigs and in some countries already have standardized, serialized products. Currently in the country’s water brake design most used