lift to drag ratio 中文意思是什麼

lift to drag ratio 解釋
揚抗比
  • lift : vt 1 舉起，使升起，提起，抬起；提高；提升。2 使高尚；鼓舞。3 運送，搬運；空運 （ ＝ airlift） 4 ...
  • to : adv 到某種狀態；〈特指〉到停止狀態；關閉。 ★也常和動詞結合，略去其後賓語，而構成成語： The door i...
  • drag : vt （ gg ）1 拖，曳；拖動，拖著（腳、尾巴等）；硬拖（某人）做（某事）[至（某地）]。2 打撈，（用撈...
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. With the ground effect, they own higher lift / drag ratio than general aircraft, so need less thrust power and have the ability to carry more loads or fly longer

    在地效的作用下，它的升阻比比一般的飛機大，因而飛行時所消耗的推進功率小，具有更大的載重量或航程。
  2. Much more increase of maximum lift - to - drag ratio can be obtained with a forward - swept main wing with a small sweepback angle leading edge

    主機翼前掠角較小時，鴨翼改善和提高陞阻比的效果比較明顯。
  3. The performance of next generation maneuverable missile was predicted by taking into account its important parameters such as lift to drag ratio, empty weight to total weight ratio and effective load

    在考慮導彈空重、有效載荷和氣動特性的情況下，預測了未來先進飛航導彈的性能。
  4. An upper canard, which is in the vicinity height of forward - swept main wing, could improve the maximum lift - to - drag ratio

    高於主機翼的鴨翼對最大升阻比的改善較多，但也不宜過高。
  5. In this paper, in order to find the approaches to reduce the drag levels and enhance the lift - drag ratio for grid fin, the aerodynamic characteristics of the grid fin are calculated with tvd finite volume scheme and wind tunnel tests. according to the complex flow field, a curve - long parameter grid generation technique is applied, and the density of the grid is processed

    為適應復雜流場的數值計算，對網格生成方法進行了研究，採用弧長網格生成法進行貼體網格生成，並對網格進行了加密處理，使物面附近網格盡量密些，而在遠場使網格盡量稀疏些。
  6. As a kind of new configuration waveriders have high lift to drag ratio ( l / d ) in hypersonic flight, which makes the study of waverider shapes an important trend of hypersonic air vehicles development

    乘波構形在高超聲速條件下的高陞阻比優勢備受關注，使得對於它的設計研究成為高超聲速飛行器外形設計的一個重要方向。
  7. The aerodynamic objective function is described as some aerodynamic parameters gained by reynolds - averaged n - s equations, such as : the lift, the drag, the ratio of lift to drag or the pitching moment, etc. the optimum process is started by a base airfoil

    本文採用基於n - s方程的流場計算程序來求解流場，得到升力系數、阻力系數、力矩系數等氣動參數，並以其中某個或某些參數構成目標函數。
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