射影覆蓋 的英文怎麼說

中文拼音 [shèyǐngfùgě]
射影覆蓋 英文
projective cover
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 影 : Ⅰ名詞1 （物體擋住光線后映出的形象） shadow 2 （鏡中、水面等反映出來的物體形象） reflection; image...
  • 覆 : 動詞1. [書面語] （蓋住） cover 2. [書面語] （底朝上翻過來; 歪倒） overturn; upset 3. 同 「復」 （Ⅱ1. 2. ）
  • 蓋 : 蓋名詞（姓氏） a surname
  • 覆蓋 : 1 （遮蓋） cover; overlap 2 （植被） plant cover; vegetation3 （保護層 覆蓋物） cover; covering; ...
  1. The forth chapter is about the concept of digital maps, and introduce how to gride the digital maps for purpose of firepowers disposal. the fifth chapter import the models of transmission of electromagnetic waves. to clarify the communication ways between communication subsystem and firepowers

    第五章根據電磁波的傳輸特性及其數學模型，建立了戰區指揮車（通信中樞）與發射車（火力點）之間的通信模型，以及空域火力覆蓋的分層投影分析，這是本演算法核心。
  2. To the influence of the plateau terrain, the impact of the elevation and the roughness of terrain to every energy component out and incoming are study, and basing the soil spectrum model proposed above, a new radiative transfer model of terrain area was put forwarded in which the soil water content, lai, terrain roughness and elevation were considered synchronously, and incoming scatter light was integral with the solid angle of semi - globe space defined by the slope of the pixel, so scattering lights of terrain and the sky are properly considered, but the operation is still within the acceptable range

    地形與反射率的關系是本文研究的一個重點。本文對崎嶇山地象元的各入射光和反（散）射光分量進行了深入分析，在所提出的濕潤土壤光譜模型和植被冠層模型的基礎之上進一步提出了新的適合青藏高原的山地輻射傳輸模型。該模型同時考慮了土壤含水量、植被覆蓋（ lai ） 、地形起伏和海拔高度的影響，並以象元坡面定義的半球空間立體角對環境入射光進行積分，使周圍地形和天空散射光均得到適當考慮，計算量又在可接受范圍內。
  3. ( 2 ) on the leading edge, the film cooling effectiveness at the zone immediately downstream of the cooling holes is affected by blowing ratio and mainstream reynolds number, while the effects are not important in the downstream zone far from the cooling holes. ( 3 ) on the front half of pressure surface, the effectiveness increases with decreasing blowing ratio at the downstream near the cooling row and it is contrary at the downstream far from the cooling row. ( 4 ) on the rear pare of the pressure surface, the effectiveness decreases with increasing blowing ratio and does not vary so much downstream in the cases of higher blowing ratio

    研究結果表明葉片吸力面端壁附近區域壓力系數分佈呈現出較強的三維特性，動葉吸力面尤其明顯；氣膜孔流量系數隨吹風比的增加而增大，在高吹風比情況下，流量系數逐漸趨于常數；在不同型面區域，冷卻效率分佈有較大的差異，而且吹風比與主流雷諾數的影響程度也不盡相同；低吹風比下，孔出口下游附近可以得到較好的冷卻，中、高吹風比下，冷氣射流在加速流動主流的作用下返回壁面進行二次冷卻，孔下游較遠區域可以得到較好的冷氣覆蓋。
  4. For parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients. inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model. the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics

    利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達後向散射模型; 2 ） .研究發現在農作物等矮小植被覆蓋地表，植被層直接後向散射與植被類型相關，且在植被生長期，雷達後向散射系數對植被含水量的敏感性要高於對植被高度變化的敏感性; 3 ） .解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題; 4 ） .利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響; 5 ） .在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse = 0
  5. The clues and techniques to improve the resolution of data processing are 1 ) removing the affection of near surface factors on data acquisition, including static correction and noise eliminating technique etc, 2 ) broadening the frequency band of pre - stack seismic data, including amplitude compensation and pre - stack deconvolution etc, 3 ) improving s / n ratio of high frequency and weak reflection signals through multiple coverage with high precision velocity analysis, residual static correction and high - order nmo, raising " dead line of high frequency reflection ", and 4 ) identifying post stack effective reflection frequency band, enhancing dominant frequency and so on

    主要包括：消除近地表因素對資料採集的影響，包括靜校正和噪音壓制技術等；疊前拓寬地震資料領帶，包括振幅補償和疊前反褶積技術等；藉助高精度速度分析、剩餘靜校正和高次項nmo技術，通過多次覆蓋疊加，消除資料中隨機噪聲干擾、提高資料信噪比，尤其是高頻端反射信息的信噪比，改善高頻反射和弱反射信號信噪比，提高「高頻反射死亡線」 ；疊後有限反射頗帶識別、抬高優勢頻率等。
  6. Through observing the influence of different geometry to reflect wave in deep layer, using seismic digital simulation tracing method, analyzing the influence of max - offset, trace interval, fold and geophone planting to reflecting energy, this article, summarizes, in both theory and practice, the application result of " bin stack " acquisition method

    通過不同觀測系統對提高深層反射信號的影響，採用地震數值模擬射線追蹤方法，分析了觀測系統中最大炮檢距、道距、覆蓋次數及檢波器埋置，對提高深層反射信號能量的影響，從理論到實踐總結了「面元疊加」採集技術的應用效果。
  7. This technique is mainly involved two steps : 1 ) vegetation effects correction : we used ndvi ( normalized difference vegetation index ) derived from tm and avhrr measurements for spatial and temporal variations of vegetation covers at different scales

    但由於電磁波與地表相互作用的復雜性，雷達後向散射系數除受地表介電常數（土壤水分）影響外，還受到地表粗糙度、土壤類型、植被覆蓋以及雷達入射角、頻率、極化等多種因素的影響。
  8. 2 ) radar incidence angle and surface roughness correction : to make radar incidence correction and eliminate the surface roughness effects, a wide range of surface parameters ( soil moisture, surface rms height, correlation length, incidence angle ) was input to the ibm model to simulate the effect of surface roughness and radar incidence angle on the sensitivity of soil moisture to the radar backscattering coefficient. a simple model was established to simulate the effects of incidence angle and surface roughness. 3 ) establishment of soil moisture change inversion model : according to a modified ibm model simulation results, the bare surface backscattering coefficients can be expressed as a funtion of the dielectric component for a given surface roughness when the surface slope greater than 2. 0, which is valid for most nature surface : in above equation, r0 is the surface reflectivity at normal incidence

    本研究中，首先利用基於微波輻射傳輸方程的微波植被模型和積分方程（ iem ）模型模擬了各種地表土壤水分含量情況下，植被覆蓋、地表粗糙度（包括地表均方根高度和相關長度） 、雷達入射角對c波段（頻率4 . 7ghz ）水平極化（ hh ）雷達後向散射系數的影響，在此基礎上，建立模型消除了植被覆蓋、地表粗糙度、及雷達入射角對雷達後向散射的影響，利用多時相50m解析度radarsatscansar雷達後向散射系數圖像反演得到了地表土壤水分變化模式信息。
  9. Half - way there was a pile of logs of wood, seven feet long. it was covered with snow and cast a shadow. across it and on one side of it there fell on the snow and the path a network of shadows from the bare old lime - trees

    數立方俄丈的垛起來的木柴擺放在道路中間，被積雪覆蓋著，可以看見木柴的影子，光禿禿的老菩提樹的陰影交錯在一起，它超過木柴並從側面投射在積雪和小徑上。
  10. The theoretical analysis indicates that the main factors of cover - shelter properties of fabrics are cover factor of fabrics, fabric thicknesss, optical reflectance and absorbance of yarn. with a combination of distances and luminaces, 512 experiments were made to find out the relationship between the least distinguishable distance and reflectance coefficient

    通過理論分析，指出了影響織物能見度的主要因素有織物覆蓋系數、織物厚度、紗線的光學反射率和吸收率.將測試距離跟織物前與織物后目標物的照度組合成512項實驗，由此獲得最小分辨距離和反射系數間的關系
  11. An ideal choice for many lighting applications including photography, warning beacons, reprographics, and pump sources for solid state lasers, perkinelmers flashlamps provide high brightness, long life and high efficiency with a spectral output range covering the uv through the ir. our flashlamps operate at extremely high energy levels and exceptionally high repetition rates

    Perkinelmer照明解決方案提供的輸出功率覆蓋了從紫外光到紅外光的整個光譜范圍，對下列各種多樣照明場合都不失為一種理想選擇:攝影，電視投影，美容，醫學，工業包括閃光燈，警示燈塔，與鐳射切割等等perkinelmer optoelectronics為全球相機市場提供高效率的小內徑閃光燈及反光燈設計
  12. Some excellent methods for optimizing the coverage of sfn are reviewed in this paper. a method for constructing single frequency network with low - power transmitters is proposed

    摘要介紹了國際上流行的一些單頻網覆蓋優化方法，並提出了採用對人體輻射影響較小的小功率發射機進行信號覆蓋的方案。
  13. High levels of cloud cover blankets the earth and reflects radiated heat from the sun back out into space, causing the planet to cool

    在本周將出版的書中，他們指出宇宙射線直接影響星球表面大氣候的覆蓋
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