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.

youdao

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.

youdao