螺旋渦 的英文怎麼說

中文拼音 [luóxuánguō]
螺旋渦 英文
spiral vortex
  • 螺 : 1. [動物學] （軟體動物） spiral shell; snail; conch 2. （螺旋形的指紋） whorl （in fingerprint）
  • 旋 : 旋Ⅰ動詞1 （旋轉） whirl 2 （用車床切削或用刀子轉著圈地削） turn sth on a lathe; lathe; pare Ⅱ名詞...
  • 渦 : 渦名詞1. （漩渦） eddy; whirlpool; vortex 2. （酒窩） dimple
  • 旋渦 : vortex （pl vortices; vortexes）; whirlpool; vemous; eddy; vorticit; backset; swirl; [地質學] nuc...
  1. From 1980 to 1996, the amount of accident jet plan and turbine aerotransport which taking off weight exceed 5700kg all over the world is 621 times. in which there were 287 times wretched accident in the approach and landing phase, occupying 46 percent

    從1980年至1996年，全世界最大起飛重量5700公斤以上的噴氣式和渦輪螺旋漿運輸機發生重大死亡事故621起，其中發生在進近著陸階段的重大死亡事故287起，佔46 。
  2. The result indicates that, in the course of the rainstorm in huoshan, there are obvious low - level jet of great intensity, infection of mesoscale shear line, enhancement of plus vorticity which increases intensity of convergence, improves ascending velocity and brings on precipitation, and quick enhancement of helicity which provides the basis to forecast, in addition, convergence of moisture flux and analyzed potential vorticity which reflects baroclinic convective instability sufficiently indicate the characteristics of the rainstorm

    結果表明：此次霍山暴雨發生前後，存在明顯的大強度低空急流，並受到中尺度切變線的影響，而且正渦度的加強引起了輻合加劇，提高了上升速度從而引起降水，同時暴雨發生前螺旋度的迅速增強，也為預報提供了根據，另外水汽通量的輻合以及分析位渦反映出的斜壓對流不穩定都充分體現了這次降水的特點。
  3. The turboprop engine is very much like the turbojet. it has an additional part, a propeller.

    渦輪螺槳發動機與渦輪噴氣發動機十分相似。它多了一個螺旋槳部件。
  4. General specification of turboshaft and turboprop engines for aircraft

    飛行器渦輪軸和渦輪螺旋槳發動機通用規范
  5. First came the turbojet, now obsolete, then the turboprop, which is still found onboard small planes

    最開始的引擎是渦輪噴射式，目前已淘汰；然後是渦輪螺旋槳式引擎，現在仍可在小飛機上看到。
  6. In 1962, a passenger terminal building was built. turboprop aircraft were being replaced by jets such as the boeing 707, dc8 and de havilland comet

    一九六二年，機場大廈建成，航空公司亦逐步淘汰以渦輪螺旋槳推動的飛機，改用波音707 、 dc8及dehavillandcomet等噴射機。
  7. The saab airborne surveillance system includes saab 2000 turboprop aircraft equipped with saab microwave systems airborne radar system erieye and associated support equipment

    薩博空中監視系統包括了薩博2000渦輪螺旋槳飛機及相關支援設備，薩博2000飛機裝配了微波系統的erieye空中雷達系統。
  8. Energy losses leading to a decrease in head are also done away with, likewise losses in flow rate from the screening installations, both of which can have a detrimental effect on the efficiency of the facility. the constructional effort required for a hydrodynamic screw is small compared to that required for a turbine. if the compact version of a hydrodynamic screw hydrodynamic screw trough power take - off unit combined as a single unit is used, the constructional effort can be further reduced

    水力螺旋機技術的優點有：無需監控系統，可自行調節水體供給和供給頻率運行效率高於水輪機和小型渦輪機效率梯度平穩轉速低20rpm - 80rpm ，運行穩定防磨損無需定期清潔，易維護對河道湖泊里的魚蝦無損害基礎工事少，安裝簡便無堵塞，無需隔欄裝置能量利用充分等。
  9. In the second part, firstly, the mathematical model for predicting hydrodynamic characteristics of varivec propeller under steady or unsteady condition are present, based on the general propeller lifting - surface theory, potential flow theory and green theorem. then, theoretical calculation methods for predicting hydrodynamic characteristics of varivec propeller designed above paragraphs are present, based on the finite basic solution method, the unsteady vortex lattice method and hess - smith method

    在理論計算部分，本文首先基於常規螺旋槳升力面理論、勢流理論和格林定理建立了定常和非定常狀態下全方向推進器水動力性能計算的數學模型，然後利用有限基本解法、非定常渦格法和赫斯?史密斯方法對全方向推進器定常和非定常狀態下的數學模型進行了數值離散，接下來針對前面所設計的全方位推進器進行了數值預報。
  10. Based on the green ' s formula and the assumption of the propeller blade ' s thin sections, a lifting - surface method of propellers with the vortex lattice and equal source panel distributions on the mean camber surface has been introduced for the prediction of steady propeller ' s hydrodynamics in this paper. an approximate kurta condition was applied

    基於creen公式和薄翼理論假設導出的升力面方法，採用在螺旋槳拱弧面上分佈離散渦、源布置方法預報均勻流場中的螺旋槳的定常性能，螺旋槳尾渦面上壓力連續性條件採用近似的kutta條件處理。
  11. The surface of propeller, hub and the vortex of blade is discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution

    槳葉、槳轂表面和螺旋槳尾渦面採用四邊形雙曲面元離散，以消除面元間的間隙。
  12. When f is about fr, for curved pipes, the secondary flow appears eight vortexes for annular cross section and four for circular and four or six for elliptical ; for helical pipe, the secondary flow appears as a loop flow for annular and circular cross section, and a saddle flow for elliptical cross section

    當f在fr左右時，對于彎管，環形截面上存在八個渦，圓截面上存在四個渦，橢圓截面上存在四個或六個渦；對于螺旋管，圓截面和環形截面上二次流表現為環流，橢圓截面上表現為鞍流。
  13. Through the utilisation of this energy, which is left unused by nature, an energy source is tapped, with whose help a part of our energy requirements can be covered, which would otherwise have to be covered by fossil fuels. the excellent properties of the hydro - dynamic screw are its minimal disturbance to the environment, the environ - mental friendliness and long service life. a capacity of 0. 1 to 5. 5 cubic meter per second and a head up to 10 m, enables it to utilise hydrodynamic powers which are ruled out for turbines for reasons of cost

    水力螺旋發電機同傳統的水輪機和渦輪機相比具有優越性，其對環境的影響很低，環境友好且使用壽命長，而且高達5 . 5立方米秒的水體輸送容量和高達10米的水頭使其可以充分的利用水能，只要有1千瓦的能量也可以利用，運行效率遠高於渦輪機，且投資和運行成本低於渦輪機。
  14. Research on flow field characteristics of vertical vortex with multi - circle spiral flow

    立軸旋渦多圈螺旋流場特性研究
  15. The phenomena of initial disturbance vorticity translating into spiral bands is most evidently for it locating at the periphery of radius of maximum wind ( rmw ), near rmw next and the spiral bands vanish when it is positioned in the inner core region. indicating that the farther the distance from the tc center, the more distinctly the spiral bands and the opposite is true

    初始圓形擾動渦度場轉化為螺旋臂渦量帶的現象是初始擾動位於渦旋最大風速半徑（ rmw ）外圍最顯著，其次是rmw附近，當擾動位於渦旋內核區時幾乎沒有螺旋臂結構形態出現，表明，初始擾動離tc中心越遠，其強迫渦旋rossby波形成的螺旋帶結構越明顯，反之越弱。
  16. The contrast analysis for the vertical distribution feature of the simulated physical quantities such as vorticity, divergence, vertical velocity. spiral degree etc suggests that there are a good disposal among the various physical quantities fields in the different stage during the period of sandstorm development, and reveals that the dynamic mechanism of the forming, developing, decreasing of the sandstorm weather and trigger and indication effects of the micro - mesoscale systems and secondary vertical circulation to the occurring and developing of sandstorm in northwest area

    對渦度、散度、垂直速度、螺旋度等物理量的水平和垂直分佈特徵進行對比分析，發現各物理量場在沙塵暴發展的不同時期有著很好的配置，揭示出西北地區沙塵暴天氣的形成、發展、消弱的物理機制和中小尺度系統、次級垂直環流對沙塵暴天氣發生發展的觸發和指示作用。沙塵暴區上空螺旋度垂直分佈為高層負值，低層正值，螺旋度大小的演變與沙塵暴的出現有一定的對應關系。
  17. Rating and application of single and multiple reduction double - enveloping worm and helical worm

    一次和多次縮減的雙箱渦輪和螺旋渦輪的應用和評定
  18. Spiral vortex model

    螺旋渦模型
  19. Single speed motor drive connected to a helical worm gear and a totally enclosed connecting gear box with heavy duty chain drive to the rolls and with fixed friction ratio according to customers request ( normally 1 : 1, 2 )

    系統帶有同螺旋渦齒輪以及全封閉齒輪箱的單速馬達，它帶有重型鏈傳動系統並可根據客戶的需要固定摩擦比（通常為1 : 1 . 2 ） 。
  20. The research indicates that the microscale spiral ( vortex ) growth dislocation is another important growth mechanism of pteria penguin and blister pearl from sanya, hainan province

    通過對該珍珠層的表徵與示蹤，初步證實微尺度螺旋（渦旋）生長位錯是海南三亞企鵝貝及其附殼珍珠又一重要的生長機制。
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