| 释义 |
镗床tángchuáng金属切削机床,用来加工工件上已有的孔眼,使孔眼扩大、光洁而精确。加工时工件固定在工作台上,镗刀装在旋转的金属杆上,伸进工件的孔眼里切削。{boring machine; boring lathe; borer; metal-cutting machine tool using a cutter fixed on a revolving metal rod to enlarge a hole in a metal accessory fixed on a workbench and make it smooth and accurate} |