ecological waterdemand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 study of the ecological water requirements in vegetation has become a hot issue in research of water resources allocation and ecol-environmental construction.
對植被生態需水研究已成為水資源優化配置和生態環境建設研究中的熱點問題。
