For the seepage control of dam, the curtain grouting and back filled concrete have been adopted. Now the No.

对大坝渗透用帷幕灌浆、回填混凝土进行处理。

youdao

For the seepage control of dam, the curtain grouting and back filled concrete have been adopted. Now the No.

对大坝渗透用帷幕灌浆、回填混凝土进行处理。

youdao