navigation obstruction 中文意思是什麼
navigation obstruction
解釋
航行障礙物- 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
- obstruction : n. 1. 堵塞，遮斷，妨礙，阻礙，障礙；【議會】妨礙議事進程。2. 遮斷物，障礙物。n. -ism 故意妨礙議案通過。n. -ist 妨礙議事者。
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The river hydrotechnic obstructions assessment standard analyzes the obstruction definition and its represent forms of obstruction traits. also the standard analyzes the obstruction ' s effect on ships " navigation, anchor and other work behaviors. it discusses the obstruction traits " diminishment means itself and not itself, assesses the obstruction traits
內河水工礙航物評價標準分析了礙航定義及礙航特性的表現形式，分析了水工建築物對船舶的航行、停泊、作業行為影響的具體表現，討論了礙航特性的自我緩解和非自我緩解措施，對礙航物的礙航特性進行了評價。 -
The positive is that as a substitute of old channel or a part of the new channel shiplock maintains the continuation of channel and makes possible the channel free from navigational obstruction and waterway transportation progress. the negative is that shiplock at the same time brings some problems to waterway transportation, such as the long time passing through shiplock, the piling up of vessels, making less other ' s benefits and making more other ' s costs, making conditions and forms of transportation change, making more complicated the waterway transportation safety management and navigation order keeping, and adding up transportation costs
在經濟學意義上，船閘具有正負外部性，正的外部性為，船閘作為原航道的替代物或新航道的一部分，保證了航道的連續性，為保證航道暢通、航運發展提供了可能；負的外部性為，船閘同時給航運帶來了一些問題，如船舶過閘時間長、船舶積壓，引起他人效用的減少和成本增加，以及運輸組織條件、方式改變，使水上交通安全管理和船舶航行秩序維護更加復雜，增加運輸成本。
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