求助！实体模型提取的内力为0（附：命令流）
/prep7Et,1,solid186MP,EX,1,3.250e10 MP,nuxy,1,0.167Mp,dens,1,2500MP,EX,2,3.0e10 MP,nuxy,2,0.167Mp,dens,2,2500block,0,8.5,0,10,0,3!16wpcsys,-1wpoff,0.36,0.9,0wprota,-45,,wprota,,-14,block,0,0.6,0,0.6,0.5,-48!17wpcsys,-1wpoff,1.98,0.9,0wprota,-45,,wprota,,14,block,0,0.6,0,0.6,0.5,-48!18wpcsys,-1wpoff,3.78,0.9,0wprota,-45,,wprota,,