文中提出一种考虑节水因素的凝汽器最佳真空的确定方法，为降低发电成本及减少环境污染提供了一项有效的途径。
This paper gives methods of determining the optimum vacuum of condenser that takes account of the save on cooling water, the methods can help reduce costs and environ.
滴灌是目前世界上最为节水的高效灌溉技术，但其昂贵的系统成本严重制约着该技术的推广应用。
Drip irrigation is the most water-saving irrigation technology with high efficiency. However, its expensive system cost seriously restricts extension and utilization of the technology.
通过回收和重复利用冷却水，既节水节能，还可保障实验课进度和降低实验课成本。
What's more, not only can it save water and energy, but also it helps to ensure the experimental schedule and reduce experimental cost.
从提高劳动生产率、土地生产率、节约成本、节水、提高水稻生产全程机械化来考虑，水稻直播是较理想的种植技术。
In order to advance the working productivity ground productivity economize cost economize water make the completely mechanical production of rice, the ideal technology is rice direct-sowing.
工业用水网络设计，可以通过优化用水网络结构，达到节水效果，降低企业成本。
Industry water-consumption network design, can reach the goal of water saving and reduce the investment of enterprise by optimizing the structure of water network.
相对于修坝来防洪水，保护水源地的植被，通过植被来调节水资源的时空分布成本更低。
It is cheaper to protect vegetation and use that vegetation to regulate water flow than it is to build a dam to prevent flooding.
灌区节水是泵站节能及降低灌溉成本的主要途径。
So it is only when water-saving has been done on the whole …
灌区节水是泵站节能及降低灌溉成本的主要途径。
So it is only when water-saving has been done on the whole …
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