boundary-layer air 中文意思是什麼

boundary-layer air 解釋
附面層空氣
  • boundary : n 邊界，疆界，限界 （between）;（球場）邊線；界標；界限，范圍，分野。 aboundary dispute 邊界糾紛...
  • layer : n 1 放置者，鋪設者，計劃者。2 【賽馬】（一般）賭客。3 產卵的雞。4 【軍事】瞄準手。5 層；階層；地...
  • air : n 1 空氣，大氣。2 天空，空中。3 微風，和風。4 態度，樣子，風度，氣派；〈pl 〉高傲的架子。5 傳播，...
  1. As the air proceeds along the test section the boundary layer thickens.

    當空氣沿著試驗段流動時附面層逐漸變厚。
  2. Airplanes drag along a very thin shield of motionless air known as a boundary layer.

    飛機拽著一層很薄的緊貼機面不動的空氣一道向前運動，這層空氣叫做附面層。
  3. Air - sea boundary layer

    大氣海洋邊界層
  4. With reof analyze technique, the mainly anomalous spatial features of soil humidity in the 0 - 50cm layer of huai river basin and their relations to different periods of precipitation and air temperature are specially analyzed by using the observed data including dekad averaged soil moisture, precipitation and air temperature data over the east of china from 1990 to 2000. the results indicate that in the springtime the 30cm layer soil can be treated as a boundary

    本文首先利用中國東部1990 - 2000年旬平均土壤濕度、降水和氣溫觀測資料，通過對0 - 50cm層次土壤濕度進行旋轉主分量分析（ reof ） ，重點分析了淮河流域土壤濕度的時空分佈特徵，並初步研究了與前期、同期和後期不同時段降水與氣溫的關系。
  5. The project of the experimental and theoretic research on friction reduction by microbubbles for high - speed ships, supported by the national natural science foundation of china ( no. 19772050 ), aims to study the key technology of air - jetting devices and its relevant problems, theoretically predict the law of bubble diffusing in the boundary layer and calculate the friction of the hull

    國家自然科學基金項目「高速氣泡船減阻試驗及理論研究」的目的在於研究高速氣泡船噴氣裝置的關鍵技術及其相關問題，並從理論上預測噴氣氣泡在船底邊界層的擴散規律和計算船體摩擦阻力，為將這一技術應用到實船上提供基礎。
  6. A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )

    設計了一種基底鉆周期圓孔結構的電磁（光子）晶體貼片天線，用fdtd方法並結合pml吸收邊界條件對該天線進行了研究，結果表明本文所設計的基底鉆孔型電磁晶體貼片天線取得了多方面的性能改善，與普通天線相比，基底中的表面波受到很大抑制，天線的帶寬增加，遠場方向圖上天線的旁瓣和背瓣被明顯削弱，向前輻射的增益由原來的12db增加到26db ，增加了14db ，比文獻上報道的gonzalo等人的研究結果提高了4db 。
  7. In this paper, based on my experiments, the mechanism of pneumatic defrosting of air cooler was studied through the application of thermodynamics, heat and mass transfer, classical theory of nucleation, boundary - layer theory, the theory on gas dynamics

    本文在對氣動除霜進行了實驗研究的基礎之上，應用工程熱力學、傳熱傳質學、晶體成核理論、邊界層理論、氣體動力學等有關知識，從系統的觀點出發，探討了氣動除霜的機理。
  8. Frictional dissipation and cutting off the water supply in the boundary layer by downslope adiabstic warming air are main mechanisms of terrain affecting tc intensity

    而摩擦耗散作用和絕熱增溫的下坡干空氣對邊界層水汽的切斷作用則是引起熱帶氣旋減弱的主要機制。
  9. Multi - gap - fowler - flap, while deflecting its rudders, simultaneously extends backwards by relatively large scope, which broaden the overall wing - camber and area, so that more additional lift could be attained through improving air - flow boundary layer

    多縫富勒襟翼在襟翼舵面偏轉的同時發生較大幅度的後退，增加機翼整體彎度和機翼面積，通過縫隙氣流改善附面層狀況，因而得到加大的升力增量。
  10. Analyze 1000hpa stream field evolvement chart, a southwest - northeast combine strap was forming in liaoning province by southwest air current and northwest air current. level combine induce the combine strap cyclone bend, whorl degree intension increase. boundary layer friction combine bring to ascend and come into being small measure cumulus convection pyrogenation

    高低空急流的耦合是此次強對流爆發的重要觸發機制，高低空急流在耦合的過程中， 300hpa高空急流強度超過50m s ， 850hpa低空急流強度超過20m s ，而且低空急流與高空急流剛好在高空急流出口區的位置上相交，對強對流爆發有利。
分享友人
分享到 Line

分享到臉書