采用沉井法施工大口径水源井可解决施工用淡水的问题。

This problem can be resolved by using submerged well method for constructing big diameter water sources well.

youdao

采用沉井法施工大口径水源井可解决施工用淡水的问题。

This problem can be resolved by using submerged well method for constructing big diameter water sources well.

youdao