拱坝作为一种经济性和安全性都比较优越的坝型，已成为国内外水利工程中主要选用的坝型之一。

The arch dam has already become one type of selecting dam mainly using in irrigation works at home and abroad, for the better economy and security.

youdao

拱坝作为一种经济性和安全性都比较优越的坝型，已成为国内外水利工程中主要选用的坝型之一。

The arch dam has already become one type of selecting dam mainly using in irrigation works at home and abroad, for the better economy and security.

youdao