常見(jiàn)例句雙語(yǔ)例句Failure of double layer dyke foundation by seepage first begins from tenacious clay covering.雙層堤基的滲透破壞首先是從黏性土蓋層開(kāi)始的。The upstream cofferdam in second period was originally designed as a sand and gravel dyke with clay core.二期上游圍堰原設(shè)計(jì)為粘土心墻沙礫料堰,經(jīng)研究修改為覆面式復(fù)合土工膜防滲結(jié)構(gòu)石碴堰。The geological structure of the dyke base is typical of double layer with sand on the top and clay on the bottom.堤基地質(zhì)結(jié)構(gòu)為典型的“上砂下粘”雙層結(jié)構(gòu),地表直接出露粉細(xì)砂。 返回 clay dyke