豁免
2022 年 4 月 11 日Roller Compacted Concrete Dam
2022 年 4 月 11 日
An opening through which water can be freely discharged from a reservoir to the river for a particular purpose.
豁免
2022 年 4 月 11 日Roller Compacted Concrete Dam
2022 年 4 月 11 日
Outlet
An opening through which water can be freely discharged from a reservoir to the river for a particular purpose.
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