河道縮短 的英文怎麼說

中文拼音 [hédàosuōduǎn]
河道縮短 英文
shortening of channel
  • 河 : 1 （天然的和人工的大水道） river 2 （指銀河系） the milky way system; the galaxy 3 （特指黃河） t...
  • 道 : Ⅰ名詞（道路） road; way; route; path 2 （水流通過的途徑） channel; course 3 （方向; 方法; 道理） ...
  • 縮 : 縮構詞成分。
  • 短 : Ⅰ形容詞（空間、時間兩端之間的距離小） short; brief Ⅱ動詞（缺少; 欠） lack; owe Ⅲ名詞1 （缺點） we...
  • 河道 : river course; streamway; covalency; runway; cut; river channel河道變遷 channel change; migration ...
  • 縮短 : shorten; curtail; cut down; cut; take up; tuck; foreshortening （投影）; contraction; shortening;...
  1. When catchment area, average channel gradient and catchment shape factor of designed culvert or bridge are known, a user can be convenient to get local parameters c, e and b from standard contour charts and easy to calculate flood flow just by a calculator. design period of flood flow is enormously shortened as well as a high precision. estimated flood flow through culvert or small bridge by new calculation model is generally less than by traditional methods, so that much cost is cut down a s reducing the span of culvert or small bridge

    以75000km ~ 2的川中丘陵地區為試點研究區，繪制了該地區新模型的參數等值線圖，率定了不同設計頻率的改正系數，使設計者只需在地形圖上獲取集水面積，河道平均坡降和流域形狀系數，在參數等值線圖上查得橋涵所在地的相應參數，使用計算器即可迅速計算出設計流量，大大縮短了設計周期，且精度較高，設計的洪水流量一般低於傳統方法，從而可減小橋涵跨徑，節省投資。
  2. One was the british consul at suez, who, despite the prophecies of the english government, and the unfavourable predictions of stephenson, was in the habit of seeing, from his office window, english ships daily passing to and fro on the great canal, by which the old roundabout route from england to india by the cape of good hope was abridged by at least a half

    這兩個人有一位是聯合王國駐蘇伊士的領事。盡管英國政府曾經很懊喪地斷言這條運河的結局，盡管工程師斯蒂芬遜也說過關于運河的可怕的預言，但是這位英國領事現在依然每天看見英國船隻通過這里。這條運河使英國繞道好望角到印度去的那條舊航線縮短了一半。
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