嫩化過程 的英文怎麼說
中文拼音 [nènhuàguòchéng]
嫩化過程
英文
tendering process-
It is difficult to be settled by classical theories because of fixed quality and quantity. this thesis bases on the improvement of traditional way, overcomes its i ack experience, takes the more advanced fuzzy decision - making and optimal selection theory, researches into the established model and gets the result that it ' s best to set pangtoupao storage and detention flood area on the left side of menjiang river by comparing the four schemes and ten objectives of fixed quality and quantity. the result holds identical views with the result of usual economic evaluation. so it ' s the first time using fuzzy decision - making and optimal selection theory to resolve the important and pragmatic problem comprehensively and scientifically
本文在總結用傳統的方法研究經驗與不足的基礎上，採用目前較先進的模糊優化理論及建立起的模型進行蓄滯洪區設置及規模研究，通過對嫩江四個蓄滯洪區方案， 10個定性定量目標的優化比選，得出在嫩江左岸設置胖頭泡蓄滯洪區最優，其優選結果與採用常用經濟評價方法所得結果基本一致，從而第一次用模糊優化理論較全面科學地解決松花江流域防洪工程中確定蓄滯洪區規模這一重大實際問題。The third, analyzed the cause of formation type resource situation and the major development and degenerating course of jilin chagan lake wetland the fourth, analyzed jilin chagan lake wetland water resource situation as well as the floodwater characteristics of western chiefly river of jilin province : the tender river the tao river the huolin river and the second songhua river
3 、分析了吉林省查干湖濕地的成因、類型、資源狀況及濕地演變退化的主要原因和過程。 4 、分析研究了吉林省查干湖濕地水資源狀況，以及吉林省西部主要江河：嫩江、洮兒河、霍林河、第二松花江流域的洪水特性及洪水資源特點。The dynamics of soil seed banks and seed movement was investigated in three bare alkali - saline patches in songnen grassland, northeast china, for exploring their potential role in the vegetation restoration of bare alkali - saline patches
摘要在松嫩平原不同退化程度的草地中選取三個次生光堿斑，通過分析其土壤種子庫和表面種子流動態，探討了土壤表面種子流在次生光堿斑植被恢復中的潛在作用。
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