-
The sludge soil dredged area in the back is effective to prevent dangerous situation of the Yellow River dikes.
黄河淤背区是堤防工程的组成部分,同时又是可以开发利用的工程工地资源。
youdao
-
The sludge soil dredged area in the back is effective to prevent dangerous situation of the Yellow River dikes.
黄河淤背区是堤防工程的组成部分,同时又是可以开发利用的工程工地资源。
youdao