The punch is used for moving vertically by going through the punch guidinghole and then punching.
冲子,用以于穿越此冲子 导孔垂直移动而进行打孔;
2
Guiding himself by the sound, he made his way through the gathering darkness to the foot of an old beech tree, with a hole in it, and from out of the hole came a feeble voice, saying 'Ratty!
The gas guiding portion guides source gas to the central portion of the plate and suspends the metal catalysts discharged from the catalyst supply hole in a specific direction.