分别应用集对分析法和模糊数学方法对汉江中下游河流水环境质量进行评价。
This paper evaluates the water quality in the middle-and-lower reach of Han River by means of Set Analysis Method and Fuzzy Mathematics.
主要原因是丹江口水库的调节作用，对汉江中下游径流量的影响枯水期远远大于汛期。
The main reason was that the operation effect of Danjiangkou reservoir for runoff was more in the low water period than in the flood period.
根据1992汉江中下游各断面实测数据，得出水环境质量等级，结果表明两种方法得出的结论是一致的，中游好于下游。
According to the data observed at the middle-and-lower reaches of Han River in 1992, the water quality is classified, and the conclusions are the same for the two different methods.
汉江中下游地区田舍为墟，人畜漂没，灾情之严重，较之1931年长江全流域大水有过之而无不及，湖北社会经济亦因此而再遭重创。
The damage caused by the flood was more serious than that of the flood in 1931 which affected the whole reaches of Yangtze River, and inflicted grievous losses to Hubei's economy.
汉江中下游地区田舍为墟，人畜漂没，灾情之严重，较之1931年长江全流域大水有过之而无不及，湖北社会经济亦因此而再遭重创。
The damage caused by the flood was more serious than that of the flood in 1931 which affected the whole reaches of Yangtze River, and inflicted grievous losses to Hubei's economy.
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