预制构件在脱模、吊运、运输、安装等环节的施工验算应将构件自重乘以脱模吸附系数或动力系数作为等效荷载标准值,构件吊运、运输时动力系数取值为()。 ["1.1","1.3","1.5","1.7"]
冰冻解冻去甘油红细胞的红细胞回收率为()。 ["≥75%","≥60%","≥70%","≥65%","≥80%"]
金属纯化剂与稀释剂的()是防止加注喷嘴不堵塞的关键。 ["加速反应","均匀混合","化学反应","电化过程"]
预制构件吊运时吊索与构件水平夹角不宜小于60°,不应小于()°。 ["30","40","45","50"]
稀释剂应在()℃能溶解大部分金属钝化剂,而且还不能破坏钝化剂的效果。 ["100","150","200","300"]
木秀于林,风必摧之;堆高于岸,流必湍之。谈谈你对这句话的理解。