| 释义 |
〔pod〕The lengthwise groove in certain boring tools such as augers.纵沟:在某些钻孔工具、如螺旋钻的纵槽〔wimble〕Any of numerous hand tools for boring holes.钻孔工具,手钻:钻孔用的手持工具〔drillstock〕The part of a drilling tool or machine that holds the shank of a drill or bit.钻柄:钻孔工具或机器上固定钻头的部件 |