求翻译：随着用水和排水费用在电力生产成本中的比重日益提高。资源缺乏这一问题也随之凸显出来，因此，节约资源与环境保护不仅具有社会效益，而且也有十分重要的现实意义。而现在对循环冷却水系统的优化研究也提上了日程，本文针对火电厂循环冷却水系统，进行工业循环冷却水系统优化运行的研究，提出了对工程实际有重要意义的优化运行方法，论文分以下部分:是什么意思？

With the increasing proportion of water and drainage costs in electricity production costs. Lack of resources, this issue will come out, therefore, resource conservation and environmental protection not only has social benefits, but also has important practical significance. Now the optimization of

Along with the water and drainage in electricity production costs in an increasingly large proportion of the increase. Lack of resources this problem is also one of the highlights, and therefore, not only save resources and environmental protection has a social benefits, but also the reality 10 is i

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As the cost of water supply and drainage in the increasing share of electricity production costs. Lack of resources the problem is apparent, thus, resource conservation and environmental protection is not only a social benefit, and there's a very important practical significance. Now study on optimi