壩頂長度 的英文怎麼說

中文拼音 [dǐngzhǎng]
壩頂長度 英文
crest length
  • : 名詞1 (攔水建築物) dam2 (固堤建築物) dyke; embankment 3 [方言] (沙灘; 沙洲) sandbar; sandba...
  • : i 名詞(人體或物體的最上部) crown; peak; top Ⅱ動詞1 (用頭支承) carry on the head 2 (從下面拱...
  • : 長Ⅰ形容詞1 (年紀較大) older; elder; senior 2 (排行最大) eldest; oldest Ⅱ名詞(領導人) chief;...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 壩頂 : crest of dam
  • 長度 : length; longitude; size; extent; footage
  1. ( 2 ) validate whether the crest elevation can meet the require of energy dissipation and erosion prevention during the beginning period of flood discharge. ( 3 ) calculate the altitude of downriver cofferdam, and make it meet the require of energy dissipation and erosion prevention. ( 4 ) calculate some average velocity of flow through some sections, including contracted section in stilling basins behind upriver cofferdam, if the hydraulic jump happen in lower reaches of the river. the program will calculate the average velocity of flow of contracted section and the length of the apron

    主要設計內容包括:計算上游圍堰后消力池的尺寸;驗證泄洪初期面高程是否能夠滿足消能防沖需要;計算下游圍堰堰高程,使其滿足泄洪期圍堰和體過流的消能防沖和工程進的需要;計算部分斷面平均流速,包括:上游圍堰后消力池中收縮斷面的斷面平均流速;首和末的斷面平均流速;當下遊河道發生水躍時,計算下遊河道的收縮斷面平均流速及需要鋪設護坦的
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