ecology water requirement的用法和樣例：
例句
- Study on Theory and Method of Ecological Water Demand in the Lower Reaches of Heihe River.
黑河流域下游生態需水理論與方法研究。 - The Fluvial Ecological Water Requirements issue is presented by taking the ecological water requirement calculation for Xuecheng waterpower Station as a typical example.
本文闡述了水電工程的河流生態需水類型及其計算方法，以薛城水電站的生態需水量計算為實例，論述了小水電開發中的生態需水量問題。
