lift ratio 中文意思是什麼
lift ratio
解釋
升力系數-
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。 -
The method of wing shape optimization of space shutlle has been developed with penalty function approach in which the objective function is the mass of the wing and the constraints are the hypersonic re - entry flight cross range, lift / drag ratio, and subsonic flight lift / drag ratio, the margin of the longitudial static stability and the magnitude of the horizontal landing speed etc
摘要介紹了在滿足高超音速再入橫向機動航程，高超音速再入飛行時的升阻比，亞音速進場飛行時的升阻比，縱向靜穩定性裕度和水平著陸速度等飛行性能設計要求下，用罰函數法尋求使航天飛機機翼質量為最小的外形優化方法並給出了算例。 -
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。 -
The results show that the frame of the grid fin has the greatest effect on the grid fin drag characteristics, reducing the drag levels and enhancing the lift - drag ratio for grid fin may be obtained by selecting appropriate frame cross - section shape and thickness of grid fin
計算結果顯示，格柵翼的幾何結構參數對格柵翼的氣動力特性影響很大，格柵翼的邊框剖面形狀和厚度對格柵翼的阻力影響最大，所以選擇合適的邊框厚度和剖面形狀可以有效地減少格柵翼的阻力，提高陞阻比。 -
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。 -
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。 -
He ' s mastered the cable steering system. the drag - and - lift ratio
他掌握了纜索操縱系統拖拉和提升的比率 -
We should tighten & improve financial control, lift control on the loan ceilings in exclusively state - owned commercial banks, gradually shift to granting loans in accordance with the assets - liabilities ratio & improve the pattern of lending
加強和改善金融調控，取消對國有獨資銀行的貸款限額控制，逐步實行資產負債比例管理，優化貸款結果。 -
The chinese government has decide d to lift restrictions on the aspects of quantity, region, ownership ratio, as well as t he company formation of the foreign capital retail trade within 3 - 5 years from wt o ' s entry, as a result, domestic retail trade will definitely face very big challenge
在中國政府決定入世后的3 - - 5年內，逐步取消外資零售業在數量、區域、股權比例、企業形態上的限制的情況下，目前國內整體落後的零售業面臨的挑戰與沖擊將是十分巨大的。 -
Besides, the design of vane is the major project of the uav research, because the vane is the most important part in power transformation of the uav, the quality of this part will directly affect the capacity of the uav. we should manage to enhance the lift resistance ratio in the same situation
此外，本課題著重對無人機的葉片部分進行設計，因為葉片是無人機的動力轉化部分，它的好壞直接影響著飛行器的飛行性能，在相同外部條件下，盡可能使其產生比較大的升阻比。 -
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。 -
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。 -
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。 -
Hoist ropes ratio of lift
電梯拽引機繩拽引
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