The current situation evaluation is to contrast the current water quality with the water quality standard, the dynamic evaluation can reflect the trend of water quality change.
现状评价是对比现状水质与标准之间的关系，而动态评价可反映水质变化的趋势。
The water quality environment evaluation should consist of such three parts as the current situation evaluation, the dynamic evaluation and the pollution degree evaluation of water quality.
水质环境评价应该包括现状评价、动态评价和污染程度评价三项内容。
Through investigation on the water environmental quality current situation of Shuangliu County, it has been found that point sources in Shuangliu County distribute comparatively centralized.
通过对双流县水环境质量现状调查，发现双流县点源分布较为集中。
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