After days of hard work , the culvert was at last completed.经过几天的苦战, 高低把涵洞修好了.They ran for the culvert and ducked in.他们跑到涵洞跟前,钻了过去.Cracks are easily occurred during construct the reinforced concrete box culvert.钢筋混凝土箱涵在施...
The bifurcated pipe of the TGP lock emptying culvert is a reinforced concrete framed structure.三峡永久船闸泄水分岔管是钢筋混凝土框架式结构.They ran for the culvert and ducked in.他们跑到涵洞跟前,钻了过去.Cracks are easily occurred during construct the r...