agricultural watershed的用法和樣例：
例句
- Research on the Movement of Nutrient-pollutants in an Agricultural Watershed in East China.
江淮農業流域壤中流養分的遷移過程研究。 - The flumes are used extensively to measure watershed turnoff.
水槽廣泛用於測量集水區的經流流量。 - We can tap a watershed indefinitely so long as we do not disturb the ecological balance.
我們只要不干擾集水區的生態平衡，就可以無限期地利用其水域。
