service discharge meaning in Chinese

供水量
供用量

2 . an optimal decision - making model for water resources scheduling of large - scale scheduling district is set up . it can provide a method to achieve maximum net revenue with a fixed service discharge from canal head and a fixed pumpage of pumping station
建立了大型灌区水资源优化调配决策模型，研究在灌区渠首供水能力和泵站提水能力一定条件下，将灌区水资源如何调配才使得灌区总净收益达到最大值的优化决策问题。