available depth ; effective depth
·2,447,543篇论文数据，部分数据来源于NoteExpress
采用降低坑底土层渗透性的措施和选择最佳的降水深度能有效地控制坑外地表的沉降。
By reducing the permeability of soil at the bottom of pit and selecting optimal dewatering depth, the settlement of ground surface can be well controlled.
youdao
应用推荐
模块上移
模块下移
不移动