The invention also comprises an abrasion drill, a bone chisel, a spatula and a drag hook.
磨钻、骨凿、刮勺和拉钩；
The main abrasion factors of drill holes for filling are analyzed and AHP quantitative method is adopted for Jinchuan Company's case.
分析了充填钻孔的主要磨损因素，引入层次定量化分析方法，对金川公司充填钻孔磨损因素进行了定量化分析。
The main abrasion factors of drill holes for filling are analyzed and AHP quantitative method is adopted for Jinchuan Company's case.
分析了充填钻孔的主要磨损因素，引入层次定量化分析方法，对金川公司充填钻孔磨损因素进行了定量化分析。
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