weak country rock

• 软岩

weak country rock的用法和样例：

例句

1. Treatment of very soft rock in Shapotou Water Control Project is a grave subject to be dealt with in project construction.
   沙坡头水利枢纽的极软岩地基处理就是工程建设必须解决的重大课题。
2. This will provide the theroy basis for optimizing design of the pile socketed in soft rock.
   为软岩嵌岩桩的优化设计提供必要的理论依据。