Put the laser level meter on the floor of the demolished house, and then hit the floor with a hammer to shake and shift the red line. And at night, hold the level meter in hand and projected the red line on the exterior wall of the house, and walked around the houses of the entire demolition area.

把激光水平儀放在拆遷房屋的地板上，然後用鐵錘不斷砸地板，使紅線震動並移位。在夜晚，手拿水平儀，把紅線投射在房屋的外墻上，圍繞著整個拆遷區的房屋行走。