The position of bearing point is got according to the equal angle of rotation between purlin and Queti,thus its maximum internal force can be obtained.
" It's going to take her head off" ! He screamed. He turned to me and waved toward the ironworker in the shop. " Go make clips to fit those purlins. I don't want you coming near this thing again" .
在,根据支承点处檩和
支承点
当像鸟飞
山
叫道。他转向我，向工作间里
檩条吧。我不希望
再靠近这个玩意儿。"
