overflow cofferdam造句

例句与造句

1. Overflow cofferdam and iversion tunnel are used offen to diverse the flow especialy where or the river discharge changing widely . there are many rivers in mountainous area in our country , so this kind of cofferdam is used relatively frequently in river divertion during construction
   过水围堰和导流隧洞相结合的导流方式对于流量季节性变化悬殊的河流具有一定的适用性。我国的山区性河流较多，因此这种围堰过流的导流方式在施工导流工程中较为常用。
2. It's difficult to find overflow cofferdam in a sentence. 用overflow cofferdam造句挺难的