Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/3c5073214eeb967152f0ad7356ab348f.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 bottom impermeable layer例句_bottom impermeable layer英汉例句_bottom impermeable layer双解例句_按摩法牛津词典
When confined aquifer under the bottom of the pit, the foundation excavation will reduce the thickness of overlying impermeable layer. 在基坑底部以下存在承压水层的情况下，基坑开挖减少含水层上覆不透水层的厚度。