目前，这些项目正在100多个国家实施，其重点内容为改进水资源管理工作，提供供水服务，包括供水与卫生服务、灌溉与排水服务以及水电服务。

Operations focus on improving water resource management and extending water services, including water supply and sanitation, irrigation and drainage, and hydropower.

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临界灌排比与灌溉引水量、排水量、河水含盐浓度、排水含盐浓度等因素有关。

Critical ratio of irrigation to drainage is related to the irrigation water volume, drainage water volume, salt content of irrigation water and drainage water and so on.

youdao

临界灌排比与灌溉引水量、排水量、河水含盐浓度、排水含盐浓度等因素有关。

Critical ratio of irrigation to drainage is related to the irrigation water volume, drainage water volume, salt content of irrigation water and drainage water and so on.

youdao