预(Yu)制(Zhi)阳(Yang)台(Tai)产(Chan)品(Pin)制(Zhi)作(Zuo)难(Nan)点(Dian)是(Shi)制(Zhi)作(Zuo)精(Jing)度(Du)比(Bi)较(Jiao)高(Gao),(?)构(Gou)件(Jian)长(Chang)、(?)宽(Kuan)、(?)高(Gao)变(Bian)化(Hua)较(Jiao)多(Duo),(?)各(Ge)种(Zhong)预(Yu)埋(Mai)件(Jian)定(Ding)位(Wei)精(Jing)度(Du)要(Yao)求(Qiu)高(Gao),(?)一(Yi)体(Ti)化(Hua)成(Cheng)型(Xing)降(Jiang)低(Di)现(Xian)场(Chang)立(Li)模(Mo)难(Nan)度(Du),(?)缩(Suo)短(Duan)工(Gong)期(Qi)。(?)