1.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.
1." 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" .
木
存在,
承点处檩和
则确定出
像鸟飞往你的山
叫道。他转向
，向工作间里的铁工招手，" 去修剪檩条吧。
望你再靠近这个玩意儿。"
