螺旋變平 的英文怎麼說

中文拼音 [luóxuánbiànpíng]
螺旋變平 英文
spin flat
  • 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...
  • 平 : Ⅰ形容詞1 （沒有高低凹凸 不頃斜） flat; level; even; smooth 2 （高度相同; 不相上下） on the same l...
  • 螺旋 : 1 （具有螺紋的圓柱體 屬于斜面類的簡單機械） corkscrewspin; screw; spiral; helix 2 （螺旋現象;尾旋...
  1. In this dissertation, through computer simulation, the problems of modeling, control and guidance of auvs are presented. the first part of this dissertation addresses the problem of dynamically modeling of auvs, and derives thrusters " two - dimension nonlinear dynamic model, which has axial flow speed and propeller rotational velocity as two state variables, voltage or current of motor as inputs, and thruster force and torque as output. the second part focuses on the nonlinear adaptive sliding mode control of auvs in diving plane and steering plane

    本論文系統研究了自主式水下航行器的建模、非線性自適應滑模控制、以及深度調整和水平面導引方法等問題，具體成果和創新點如下1 、根據流體力學理論，建立了螺旋槳推進器的動態模型，它以螺旋槳來流速度v _ p和螺旋槳轉速n為狀態變量，以電機施加轉矩為輸入，螺旋槳推力t和轉矩q為輸出。
  2. The company passed iso9001 in 2001 : 2000 international quality management system attestations. now the predominant product has already become xr series helical gear units, xf series parallel shaft helical gear units, xk serial helical - bevel gear units, xs series helical - worm gear units, xt series spiral bevel gear units, xb series high power gear units, xh series high power gear units, nmrv series worm gear units, mb, mbn series planetary friction mechanical speed variator, x, b series cycloid reducer, wb series cycloid micro reducer to wait more than ten serieses, several thousand kinds of specificationses of in general use product

    現主導產品已形成xr系列斜輪硬面減速機xf系列平行軸斜輪減速機xk系列斜輪螺旋錐輪減速機xs系列斜輪蝸輪減速機， xt系列螺旋錐輪減速機， xb系列螺旋錐輪-斜輪減速機xh系列平行軸斜輪減速機nmrv系列蝸輪減速機， mb mbn系列行星錐盤無級變速機， x b系列擺線針輪減速機， wb微型擺線針輪減速機等十幾個系列數千種規格的通用產品。
  3. The spiral bevel gear ( sbg ) is a critical component of machinery transmission, which not only transfers movement and power, changes transmission direction, but also features high carrying ability, good movement stability and so on. so it is widely used in lots of industrial equipment such as aviation, spaceflight, automobile, precision mechanism and petroleum drilling

    螺旋錐齒輪是重要的機械傳動元件，既傳遞運動和動力，又可改變傳動方向，而且具有承載能力高、運動平穩性好等優點，因而被廣泛應用於航空、航天、汽車、精密機械、石油鉆探等許多工業設備中。
  4. The instrument is supported by a test fixture with cold - wall thermal radiators. copper coils attached to the radiators circulate liquid and gaseous nitrogen to vary the instrument temperature

    感覺這個變溫設備就像平常的暖氣片一樣，不過螺旋管中流動的是液態或者氣態的氮。它還配備有變溫和控溫裝置。
  5. By comparing the biological characteristics of original normal filament, linear filament and the curved filament retransited from linear filament, certain evidence of the morphologic variation regulated by a special transposon are detected on the level of protein and dna, which will help us to discover the mechanisms of this morphologic variation on molecular genetics level and solve the problem in production of spirulina in large scale

    在比較了正常藻絲體、變直藻絲體及回復正常螺旋形態的藻絲體一組材料生物學特性的基礎上，進一步在蛋白質及dna水平上找到了轉座子調控此形態變異的某些證據，為闡明螺旋藻形態變異與重建的分子遺傳學機制以及解決螺旋藻大規模生產的實際問題提供理論依據。
  6. 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。
  7. It tell us : the abrasive capability of fly ash ; the similar calculation of ash erosion ; the calculation of ash erosion in the tube in turn and tube out of turn ; the reason of tube abrasion for gas flue ; the influence of air parameter for fly ash erosion ; the influence of changing temperature ; the influence of the flue gas composition, etc. next, it advances the solving measure ; reduce the flue gas velocity ; reduce the concentration of fly ash ; responsible construction : replace smooth tube with spiral tube ; use the new material of abrasion ; fuel desulfurization ; reduce so3 of flue gas ; raise flue gas temperature, making it up the dew point ; use the abrasion - resistance material to resist abrasion

    討論了飛灰磨損性能、管壁受飛灰沖蝕的近似計算、灰粒對順列管和錯列管的磨損計算、煙氣走廊引起對流管束的磨損機理、空氣動力參數對飛灰沖蝕的影響以及受熱面壁溫變化及煙氣成份對飛灰磨損的影響等問題。接著提出了解決的措施：降低平均煙氣流速；降低飛灰濃度；使用鰭片管、螺旋翅片管代替光管；選擇合適的結構及排列方式，減少煙氣中so3的含量；提高受熱面壁溫使之大於煙氣的露點溫度；採用抗腐蝕材料作受熱面等防腐蝕的措施。
  8. Its basic motive power is unity of opposites between natural - ecological subsystem with a stable growth and a limited supply and social - economic subsystem with an unlimited demand. in essence its development process is a dialectical, balanced - unbalanced - balanced process like a spiral between social - economic demand and natural - ecological supply. during the process the key to its operation state is the way and the extent of mankind ' s activities interfering with natural - ecological subsystem

    鄱陽湖區農業自然資源利用演變的基本動因是具有增長型機制並對自然資源需求無限的社會經濟子系統與具有穩定型機制的自然資源供給有限的自然生態子系統之間的對立統一；湖區農業自然資源利用的演變過程實質上是一個螺旋式上升的辯證發展過程，是社會經濟子系統需求與自然生態子系統供給之間平衡失衡平衡的發展過程。
  9. Based on the mechanism of slipstream interaction, described in this thesis is firstly the interaction of the propeller slipstream with the wing 、 fuselage and horizontal tail. subsequently, the changes in lift 、 drag and pitching moment are derived, giving an engineering model for the prediction of the increments in the aerodynamic characteristics caused by the interference between the propeller slipstream and the other parts of aircraft. this method offers a powerful means to the calculation of the aerodynamic interaction between the propeller and the aircraft, providing reliable data for the design of and aerodynamic calculation on propeller - powered aircraft

    本文以滑流干擾的機理為出發點，研究了螺旋槳滑流與飛機機翼、機身、平尾組合體之間的相互影響，推導出滑流引起的飛機升力、阻力和俯仰力矩的變化，給出了滑流干擾對機體氣動特性影響的工程估算方法，為研究螺旋槳與飛機部件之間的相互干擾提供了有力的工具，為以螺旋槳發動機為動力的飛機的設計和氣動計算提供可靠的依據。
  10. The results indicate that the film thickness on the surface of the horizontal twisted and fluted tube becomes more uniform than the classical smooth tube

    結果表明，與水平光滑圓管相比，水平螺旋槽管表面的液膜變薄且分佈變均勻。
  11. The main works and conclusions in this paper are as follows : 1 、 the two - phase flow patterns are observed in micro - fin helical tube. the flow pattern map is obtained and compared with the map of smooth straight tube, the result of which explains the theory of transformation among the flow patterns in micro - fin helical tube and the pattern difference between helical and straight tube

    具體說來有以下內容： 1 、對微肋螺旋管內兩相流動流型進行了實驗觀察，作出了流型圖，並與水平直管流型進行了分析、比較，解釋了兩者間的流型差異和微肋螺旋管流型間的轉變機理。
  12. The accomplishing method is that the attack angles of aerodynamic forces are made changing along transmission line so aerodynamic forces are made being approximate balance state by spiral winding plastic belt on transmission line

    實現的方法是在輸電線螺旋地纏繞橫截面為三角形的塑料帶，使氣動力的攻角沿輸電線的長度方向周期性地變化，使作用在輸電線上的氣動力近似地成為平衡力系。
  13. At here, based upon designing idea of the shearing planes of left and right two shears are at 45 with respect to main transmission plane and the combination with changeable structure, the shearing mechanism of two mutually twisted flat screw wires was designed

    在此，基於左右兩把剪刀的剪切平面相對于主傳動平面成45 ，以及與變結構相結合的設計理念，設計出了兩根互繞扁螺旋鋼絲的剪切機構。
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