A.蒸發(fā)池 B.截水溝 C.急流槽 D.管式滲溝
A.0.5%~1.0% B.1.0%~1.5% C.1.0%~2.0% D.2.0%~2.5%
A.混凝土澆筑B.預(yù)應(yīng)力張拉C.路面壓實(shí)D.壓漿