1. Knock plastics bulge into the wall with hammer.Don't let it outstand the wall.
   用大鐵錘警惕將泡沫塑料脹塞送入墻頂，不會凸顯墻頂，可以鋼刀切除術露墻外的部門。
2. Its range had the larger outstand to outboard working face under the condition of injecting grouts in separate layers.
   離層帶注漿時的覆巖毀損要素和超范圍向上班面前側凸顯明顯。