hydraulic rotary drill 中文意思是什麼
hydraulic rotary drill
解釋
液壓回轉式鉆機-
Hydraulic tap hole drill with folding rotary mechanism
轉臂折疊式全液壓開鐵口機 -
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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