Jack used a drill to bore a hole in the wall above the fireplace.
杰克用钻子在壁炉上方的墙上钻孔。
2
This paper expounds the design of processing techniques before hole-boring on the cylinder of upright post and hoisting jack used in the hydraulic support.
阐述了液压支架所用立柱、千斤顶的缸筒在上深孔钻镗床进行镗孔、滚压之前必须进行的加工工艺的设计。
3
Some of the holes such as hole audio jack and speakers not equipped with water cover.