unavailable water

用法例句

The thesis makes analysis to the producing reasons of the ineffectual cold water in hot water supply from the perspectives of round-robin mode,pipeline design,construction process and maintenance management etc.

文章从循环方式、管线设计、施工工艺以及维护管理等方面对热水供应中产生无效冷水的原因进行分析,并提出解决办法。