navigation dredging 中文意思是什麼
navigation dredging
解釋
航道開挖- navigation : n. 1. 航行；導航；領航；航海[航空]術。2. 〈集合詞〉船。3. 〈古語〉航路；海上交通。adj. -al
- dredging : 干法塗搪
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First the author memorized the yellow river excavation history and concluded development of modern dredging science, and found that most researches of dredging are related to navigation regulation, little used to flood control especially in the yellow river with silty. based on the experiment of generalized physical model of the lower reach of the yellow river, and the study of the loaden flow mechanism and the dredging efficiency, the author get some new ideas as follows : 1
通過對黃河疏浚的歷史以及現代疏浚工程學的發展進行了回顧和總結，認為已有的疏浚研究大多基於航道疏浚工程，對于防洪疏浚特別是在黃河這種多沙型河流上進行防洪疏浚的研究極為欠缺，本文基於黃河下遊河道概化模型試驗，對疏浚挖槽后水沙運動機理及效果等進行了研究，得到以下認識。 -
Dredging is one of the effective engineering measures to control floods and improve navigation
清淤疏浚是提高大江、大河、大湖防洪及通航能力行之有效的工程措施。 -
But currently a huge amount of sediment deposited there has caused severe problems and need to be dredged. dredging is one of the effective engineering measures to control floods and improve navigation, irrigation conditions and environment
但是，目前這些河流、湖泊、水庫和港口的泥沙淤積嚴重，需要進行清淤疏浚，以提高防洪、灌溉、通航能力，改善生態環境。
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