blast hole drill 中文意思是什麼
blast hole drill
解釋
爆孔鉆-
Application of pneumatic - hydraulic crawler drill in drilling open - pit blast hole
氣液聯動鑿巖鉆車應用於露天爆破穿孔 -
Industrial test method of open - cut mine rotary blast hole drill
露天礦用牙輪鉆機和旋轉鉆機工業試驗方法
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