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发表于 2005-4-13 11:57:30
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But it is these jobs make the study of the problems of the flooding risks for the suspended river getting developed continually, and these jobs have combined each element which related to the flooding of the downstream of the suspended rivers for this study, so as to build up a more comprehensive and feasible evaluation system and a united general evaluation model, so that to set up a basement for a deeper study for the suspended river problems of the downstream of the Yellow river |
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