City industrial water conservation efficiency does not have a scientific and reasonable standard for a long time.
长期以来城市工业节水效率缺乏一个科学合理的衡量标准。
Compared results about the industrial water conservation or 18 cities in North China have been illustrated in this paper.
文章列举了华北18个城市工业节水水平的评价结果。
In this paper the mathematical model and the quantitative appraisal on industrial water conservation in cities have been presented by introducing the industrial structure factor.
本文结合了城市工业结构的因素建立数学模型，对城市工业节水水平进行定量的评价。
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