Through large area demonstration, a good social, economic efficiency and ecological benefit had been obtained.

该规程经大面积示范推广，取得了良好的社会效益、经济效益和生态效益。

youdao

Through large area demonstration, a good social, economic efficiency and ecological benefit had been obtained.

该规程经大面积示范推广，取得了良好的社会效益、经济效益和生态效益。

youdao