Upper Left is the Practice of Surge Irrigation. Below is the Surge Valve Made by IWHR.

左上图为波涌灌溉田间应用实践，右下图为中国水科院研制的波涌控制阀。

youdao

Upper Left is the Practice of Surge Irrigation. Below is the Surge Valve Made by IWHR.

左上图为波涌灌溉田间应用实践，右下图为中国水科院研制的波涌控制阀。

youdao