grading of river 中文意思是什麼
grading of river
解釋
河流均衡作用-
The article, divided into 3 periods, describes the history of the development of zhujiang river ' s waterway transportation, and gives us a true picture of zhujiang river ' s waterway transportation in the following aspects : societal economy of zhujiang river valley, present conditions of fairway, harbors, ships and supporting & guarding systems such as waterway transportation industry, communication, piloting, and etc. the main contents include the characteristics of zhujiang river ' s layout, the fulfillments of zhujiang river ' s waterway transportation and the quantities of passengers and cargoes that zhujiang river carried, laying emphasis on the conveyance method and characteristics of zhujiang river as a main and important waterway transportation channel, and introducing characteristics of the fairway layout of the zhujiang river, present conditions of fairway grading structure, layout characteristics of the harbors in zhujiang river valley, harbor ' s handling capacity & container harbor ' s present situation, and gross tonnage & layout characteristics of shipping capacity of zhujiang river valley, ships " technical conditions and transportation methods
論文分三個階段論述了珠江航運發展的歷史沿革。從珠江流域社會經濟、航道、港口、船舶，以及水運工業、通訊導航等支持保障系統等方面論述了珠江航運的發展現狀，分析了珠江水系河流分佈特點，珠江航運生產，客貨運輸量，並重點論述珠江水系水運主通道和重要河道的運輸方式和運輸特點；珠江航道分佈特點、航道等級結構現狀；珠江水系港口分佈特點、港口吞吐量及集裝箱港口現狀；珠江水系船舶運力的總量、結構及分佈特點，船舶的技術狀況、運輸方式等。論文分析了珠江航運發展存在問題及制約因素，珠江航運發展存在的主要問題，一是內河航運建設資金投入不足；二是水資源未得到綜合利用；三是航運管理體制不順；四是技術裝備落後，限制了內河航運優勢的整體發揮。 -
Abstract : the categorization and grading of river port shorelines presented in this article is based upon the quantified analysis acciording to the method of multi - objective decision making on divisions of river shorelines. jafter obtaining a synthetic degree of satisfaction with each division of river shorelines, then fuzzy cluster analysis is applied for the categorization and grading of the divisions of river shorelines in an effort to make an evaluation of the qualities and functions of river shorelines based on quantified categorization and grading
文摘:文中提出的港口岸線分類定級方法，是按多目標決策方法對分段岸線進行定量化分析，得出每段岸線的綜合滿意度，然後利用模糊聚類的方法對岸線進行分類定級，以便在定量化分類定級的基礎上進行岸線性質和功能評價
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