波段比 的英文怎麼說

中文拼音 [bōduànbǐ]
波段比 英文
band ratio
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 段 : Ⅰ量詞（部分） section; segment; part; paragraph; passage Ⅱ名詞（姓氏） a surname
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 波段 : [電學] wave band; wave range; band; range; frequency range; frequency band
  1. Speaking upon arrival in durban for the first leg of the club ' s south africa tour, sir alex confirmed that the 24 - year - old pole should become the reds ' first signing of the close season

    在抵達德班進行俱樂部南非之行第一階段比賽后的發言中，費爵爺正式了24歲的波蘭人將成為曼聯新賽季完成的第一筆交易。
  2. In actual fact, a suitably modified amateur radio transmitter operating in either the 420 to 450 megahertz band or the 1. 3 gigahertz band, with a highly directional antenna, is capable of transmitting voice to skull signals at less cost than the price of an automobile

    事實上，一個適當限制在420到450兆赫波段或1 . 3千兆赫波段的帶有高度定向天線的業余無線電廣播發射機，能夠把聲音信號傳給頭骨並且所花的費用比一輛汽車的價格還要少。
  3. The calculated value of bowen ratio was more accurate than the measured value of lysimeter in describing the evapotranspiration rule of crops in short period

    波文比的計算值比蒸滲儀的測量值更能精確地反應短時段作物的蒸發蒸騰規律。
  4. Two astronomers at the university of british columbia observed the subaru deep field heros with the submillimetre scuba camera at the james clerk maxwell telescope a 15 metre aperture radio telescope, also on mauna kea

    加拿大英屬哥倫比亞大學兩位天文學家，亦利用同樣位於莫納克亞山上的麥克斯偉望遠鏡james clerk maxwell telescope ，口徑15米的亞毫米波段射電望遠鏡，對從sdf中所發現的四個hero進行觀測。
  5. Through measuring the value of infrared radiation when the complex decoy is burning, it is concluded that the complex decoy ' s energy of infrared radiation is much more than the substrate ' s. through researching the performance of microwave radar ' s transmission and refection within the band of 3mm and 8mm, it is proved that the interference with radar is feasible

    在復合誘餌劑的性能測試方面：對制備出的復合誘餌劑燃燒時的紅外輻射展開研究，發現了復合誘餌劑的紅外輻射能量比基片的紅外輻射能量有很大的增加；開展了對3mm 、 8mm波段毫米波雷達的透射與反射性能試驗，證明了該誘餌劑干擾雷達波是可行的。
  6. Exposure ratios between spectral bands are determined from in situ reflectance spectra of objects in scene.

    光譜波段之間的曝光量比值，可以根據景物中目標的就地測定的反射光譜確定。
  7. Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results

    文摘:把常用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導相比：電性能相當；波導管結構更加簡單，容易加工，便於安裝.文中給出圓突-矩形波導中主模場，圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣，縫隙電壓相位為同相分佈，輸入端匹配.實際測量了天線輸入端電壓駐波比和h面方向圖，理論與實驗相吻合
  8. The quartenvave film stack based on one dimensional photonic crystal technology is designed. the measurement of the ir band is relatively mutual while that of mmw band is lack of report. the reflectivity of ir area ( 3 - 5 m ) by fourier transform infrared spectrometer ( ft - ir ) is given, and the experimental data of mmw band in microwave network analysis is also given

    本文給出了直接在傅立葉紅外光譜儀中進行的紅外波段透射率（實際是反射率）測量結果，在毫米波波段，通過自行設計的測試方法與測試系統，給出了在hp8510矢量網路分析儀下測得的未鍍膜、鍍膜樣品的比對測試結果。
  9. Based on the spectral irradiance measured with the sun - atmosphere ultraviolet spectrum radiometer ( sauvs ) developed by the institute of atmosphere physics and the changchun institute of optics and fine mechanics, chinese academy of sciences, measuring the direct and scatter irradiance spectrum of ultraviolet waveband which arrives in beijing global surface, giving a method of retrieving the aerosol optical depth ( aod ) and put up with primary results that exponential function can fit the retrieval results according to its visibility, putting forth different coefficients and functions on variable visibility, also giving a primary analysis on the aod in dust - storm day and some contrast between sun - day and dust - storm day, analyzing the ratio between scatter and total irradiance, and its relationship with atmosphere mass and total atmosphere optical depth, lastly contrasting with the survey results by aeronet beijing station, the results of retrieval is in reason, this work gives some help in researching the co - effect of aerosol - radiance - climate and makes preparation for further survey on the radiance characteristics of dust

    利用中國科學院大氣物理研究所與長春光學精密機械研究所合作研製的太陽?大氣紫外光譜輻射計（ sauvs ） ，測量到達北京地表的太陽直接和散射紫外光譜輻射，導出了大氣氣溶膠的光學厚度。初步結果表明：北京紫外波段大氣氣溶膠的光學厚度在絕大部分情況下隨波長的增加而單調減小，用指數函數可以較好地擬合反演結果，統計得到了三個水平能見度狀況下擬合函數的系數值和公式表達式；初步分析了揚沙、浮塵、沙塵暴天氣條件下氣溶膠光學厚度的特點，並與一般晴朗天氣條件下的氣溶膠光學厚度特點做了比較分析；分析了太陽紫外譜輻射中散射輻射與大氣質量、大氣總光學厚度的定性關系和定量表達式；最後與全球氣溶膠監測網路（ aeronet ）北京站的資料做比對，表明反演結果基本合理。
  10. The microwave landing system ( mls ) has higher performance and more advantages than the instrument landing system ( ils ), which will be adopted as the international standard landing system to replace ils in this year

    並且，由於微波著陸系統工作于微波段，還可以減小多徑效應。因此，和儀表著陸系統相比，微波著陸系統是一種性能比較優越的著陸導航系統。
  11. In the paper, the transition of ka band rectangular waveguide to micro strip probe and the back - to - back structure are designed. the measurement results indicated the low insert loss and low return loss from 35 ghz to 40 ghz

    本文設計了ka波段矩形波導到微帶探針過渡結構以及背對背結構，測試結果表明，在35 40ghz頻率范圍內，其插入損耗和回波損耗都比較小。
  12. To certain monitoring area and the remote sensing ratio wave bands defined, by means of the criterion of mean residual sum of squares to carry on filtering of remote sensing factors, finally the important remote sensing wave bands influencing canopy density estimation are confirmed, meanwhile the operable software system is programmed

    針對特定監測區域，對設置的遙感比值波段，採用平均殘差平方和準則進行篩選，最終確定對郁閉度估測有一定影響的遙感波段，並形成可操作的軟體系統。
  13. The contrasting colors of purple in the background, bright yellow in a heart, and red and dark brown in the border around the heart add an uplifting sensation to the painting like white clouds in the middle of the sky, going against earth s gravity to enter into the boundless cosmos. the viewer feels as if he is being upheld by an invisible power to be free from the influence of naked eye observation so as to hear the subtle vibrations resonating from the flickering colors found in each brush stroke of the enlightened artist. he is able to enjoy wonderful mysteries and feel fine tuned frequencies, which are indescribable in worldly language and not arguable by the earthly mind

    那些對比色：紫色的底金黃色的中心紅色棕色的邊，讓整幅畫清爽流利，像天空中的一片雲突破地球引力奔向浩瀚宇宙，觀賞的人好像得到無形力量的貫注，不再局限在凡夫的眼界，而能在那些水遇無痕的筆法布局中，用心傾聽出顏色的微細振動，從行雲流水的線條中，隱現出開悟神奇奧秘的享受，感受到那微細的高頻率波段不可說的天籟。
  14. The proportion of the difference of the portfolios is different between the up phase and the down phase

    上升波段和下降波段組合差值的構成比例不同。
  15. The main tasks and innovative points of this study as follow : 1. based on the spectrum anlysis, statistical characteristic and snr ( signal to noise ratio ) of hyperspectral remote sensing image, some optimal bands for desertification monitoring was selected

    本研究的主要工作和創新點包括以下幾個方面： 1從光譜特性、圖象的統計特徵和信噪比三個方面討論了高光譜遙感數據波段選擇的方法。
  16. The experiment results from practical multispectral images have shown that this algorithm is efficient. if the original image is reconstructed by five eigen subimages, the nearlossless compression ratio is above 11 for the data used in this paper and the psnr is more than 45db

    實驗結果表明，對機載64波段多光譜遙感圖像進行k - l變換和整數小波變換后，選用五個本徵子圖像重建原圖像，壓縮比可以達到11以上，峰值信噪比則超過45db ，取得了其它方法無法獲得的效果。
  17. From the point of view of experiment, this article first calculates the spectrum power distribution of incandescent lamp, fluorescent lamp, high2pressure sodium lamp and the metal2halide lamp, then calculates the ratio of visible spectrum power to the whole spectrum power in order to prove theoretically that incandescent lamps have the low light efficiency, while the high2pressure sodium lamps and the metal2halide lamps have the higher light efficiency

    本文從實驗的角度，通過計算得到白熾燈、節能燈、高壓鈉燈和金鹵燈的光譜能量分布圖，並計算得到這四種燈的可見波段能量所佔總能量的比例，從而理論上證明了白熾燈光效低，而高壓鈉燈和金鹵燈的光效較高。
  18. So its naissance brings a lot of hope and promotion to application and deploitation of milimeter and submilimeter - wave. because of gyrotron, s superiority of high peak power and average power among many known milimeter and submilimeter - wave gyrodevices, it has been paid much respect in the world for application in many areas such as plasma heating, rf accelerator, millimeter radar, dew and so on

    由於迴旋管具有在毫米、亞毫米波段其它器件無可比擬的高峰值功率、高平均功率的優越性，因此在受控熱核聚變等離子體的迴旋管加熱（ ecrh ） 、電子高能rf加速、雷達系統、通信系統以及定向武器（ dew ）等方面都有著廣闊的應用前景。
  19. Firstly, the characteristics of radiation propagation and attenuation in the atmosphere, and the power response of a contrast - limited optoelectic system are analyzed, the apparent contrast model of a target is developed, and the detection range equation dependent on the aerosol extinction coefficient and range parameter are derived

    首先，分析了紅外波段大氣輻射傳輸與衰減、對比度限制光電成像系統功率響應特性，建立了目標表現觀對比度模型，並推導出了由氣溶膠消光系數和距離參量確定的探測距離方程。
  20. Faraday rotation spectra was measured on samples with model cgx - 1 fr test apparatus by ourselves using the magneto - optical modulated double - frequency method. the development on magneto - optical material and devices, especially on rare - earth ion garnet, were reviewed. as a solution to the problem for temperature stabilized and wideband magneto - optical materials which could satisfy the development of magneto - optical devices for integration and miniaturization, a modified liquid phase epitaxy ( lpe ) technique was brought forward to grow thin film yb3fe5o12 onto substrate ybilg or thin film ybilg onto sustrate ybig

    本論文工作包括對ybiig 、 ybig系列石榴石薄膜制備的實驗構想、相圖分析、制備工藝分析和配方設置，搭建了液相外延設備；比較系統地研究了ybiig 、 ybig系列石榴石薄膜的生長、測試，首次成功制備了ybig ybiig 、 ybiig ybig ggg系列復合膜，並採用xrd 、 sem 、 epma等方法對所得樣品進行了結構、組分和微區形貌分析，用紫外可見光光譜儀測試了其在可見近紅外波段光吸收。
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