线条板底侧面清洁干净(不能有油污)，板上螺丝孔全部用丝攻攻牙一次。
The bottom side of the line plate shall be cleaned up (no oil stains), and all the screw holes on the plate shall be tapped with screw taps.
一个常见的问题是由孔的边缘不整齐或者纸带不干净所引起的。
A typital problem is caused by the ragged edges of the holes, or by dirt on the tape.
第四步，我擦干净内胎表面，然后用粉笔在有孔的地方作了标记；
When a stream of bubbles were rising, I knew where the puncture was. Fourth, I dried and cleaned the surface of the inner tube.
吹气筒是一种手工推拉的吹气工具，它用于墙面打孔、植筋，把孔内灰尘吹干净的专用气筒。
The air blowing cylinder is the manual air-blowing device; it is used as the special device in the wall perforation, the steel implantation and the hole-inside dust blowing.
吹气筒是一种手工推拉的吹气工具，它用于墙面打孔、植筋，把孔内灰尘吹干净的专用气筒。
The air blowing cylinder is the manual air-blowing device; it is used as the special device in the wall perforation, the steel implantation and the hole-inside dust blowing.
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