There are many hidden dangers using man-power hole pile foundation under the high water mark condition.

高水位条件下采用人工挖孔桩基础，存在很多的隐患。

youdao

There are many hidden dangers using man-power hole pile foundation under the high water mark condition.

高水位条件下采用人工挖孔桩基础，存在很多的隐患。

youdao