The butting ends should be cutsquare so that full contact can be maintained.
接头处应该修理成四方形,以利于保障充分的接触面积。
2
It is a central part of a round cutsquare square, the whole city's buildings are good idea, "arguing" a miniature universe celestial landscape.
中心部分是一个圆切正方形广场,整个城市的建筑构思恰如“天圆地方”的宇宙天体的微缩景观。
3
The vertical feed fly saw, equiped on most straight welding pipe sets, can not be suitable to cutsquare shaped pipes because of serious deformation on the cut face.