Some famous massive-head DAMS of country have some trouble during their construction or working.

国内几座有名大头坝在施工、运行期间分别出现了不同问题。

youdao

Some famous massive-head DAMS of country have some trouble during their construction or working.

国内几座有名大头坝在施工、运行期间分别出现了不同问题。

youdao