raise boring 中文意思是什麼
raise boring
解釋
提升鉆進-
Grading of raise boring machine quality for coal mine
煤礦用反井鉆機產品質量分等 -
Coal bunker raise - boring technology with hanging cage in central hole
中孔吊罐反井施工煤倉技術 -
Developing tendency of hydraulic rotary drill and raise boring machine
液壓旋轉式鉆機與反井鉆機的發展趨勢
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