Quaternary gravel

• 第四纪砂砾

Quaternary gravel的用法和样例：

例句

1. The foundation of gated-weir of the Wanbahe Power Station is located on Quaternary deposit which is soft.
   摘要湾坝河水电站闸基坐落在第四纪砂砾石覆盖层上，属于软基上建闸。