襯比度 的英文怎麼說

中文拼音 [chènbǐdù]
襯比度 英文
contrast
  • 襯 : Ⅰ動詞1 （在裏面托上一層） line; place sth underneath 2 （陪襯; 襯托） set off Ⅱ名詞（襯在裏面的附...
  • 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...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  1. Shotcrete - rock bolt support and concrete lining are important parts of timbering structures in modern tunnel construction, and there are also essentials for natm. the intensity difference of concrete is big because of the big randomicity at the aspects of material, metage of additive, mix round, ratio of water and lime, spray construct and water maintain

    由於噴射混凝土和二次襯砌在拌和料、外加速凝劑的稱量、拌勻以及水灰比的配比、在噴射作業及灑水養護上都存在著很大的隨機性，其強度的差異也較大。
  2. Moke and fmr studies were performed on epitaxial single crystalline fe ph. d thesis ; investigations of magnetic properties on magnetic thin, ultrathin and patterned films ultathin films on iii - v semiconductor inas substrate with thickness of 8 - 25monolayer ( ml ). the major findings are listed below : ( 1 ) the in - plane magnetic crystalline anisotropy of film with 8 - 25 ml thick are four - fold anisotropy, and the in - plane unixial anisotropy of fe / inas films decreses faster with thickness than that in fe / gaas films. it could be explained that the stain relaxation of fe / inas films is also faster than that in fe / gaas films as indicated by leed

    對于外延生長在inas襯底上、厚度為8 - 25ml的超薄fe單晶膜進行了鐵磁共振和磁光研究，獲得以下幾點結果： （ 1 ）膜厚在8 - 25ml之間時，薄膜面內的磁晶各向異性為四度對稱各向異性，垂直單軸各向異性比同厚度的fe gaas系統小許多，而立方各向異性則比fe gaas系統更接近bcc結構的fe 。
  3. Oversteer in the “ textbook ” sense is the difference between cornering stiffness at front and rear, taking into account tyre characteristics, geometries, bush rates, etc, etc

    轉向過度在教科書中是指前後輪轉向剛度的不同，需要考慮到輪胎的特性，幾何學，襯套比率等。
  4. It was concluded that, the structure of ito thin films were influenced by many working parameters such as substrate temperature, oxygenous pressure and substrate and so on. it was indicated by sem spectra of zno thin films that the surface of the sample was leveled off, and the crystals were felsitic

    結果表明，對于ito薄膜，薄膜的光電性能薄膜結構的擇優取向性和與襯底溫度、濺射氧氣壓等工藝參數有很大關系， ito薄膜的sem表明，樣品表面較平整，且晶粒也比較緻密。
  5. This paper analyses the stress and deformation of the two lining structure types of the surge shaft surrounded with crush rock under the action of high water pressure by using fem, compares the two lining types ' s merits and demerits in stress, deformation, fracture state, the combining bearing of surrounding rock and lining structure, the safety and economics

    本文針對圍巖條件比較破碎，裂隙發育的調壓井洞室結構，就兩種襯砌結構型式分別進行了高水頭作用下的有限元數值模擬，從調壓井襯砌結構選型角度分析對比了兩種襯砌結構型式在圍巖及襯砌結構應力與變形、襯砌結構鋼筋混凝土開裂、圍巖與襯砌結構聯合承載、結構安全儲備、經濟等方面的優劣。
  6. Besides, the growth of gasb expitaxy film was monitored by reflection high energy electron diffraction ( rheed ). the rheed images and intesity oscillation are collected by computer system. it showed that the gasb film prepared in 400 was amorphous and it became monocrystalline when the temperature rose to 500. atomic force microscope ( afm ) was applied to analyse the surface morphology of the films which were grown in diffrent growth rates or substrate temperature. the analysis were compared to simulation results. the experiment results indicated it was easy to form clusters when the rate of growth is high or

    此外，本文通過反射式高能電子衍射（ rheed ）監測了gasb外延薄膜的生長，利用rheed強度振蕩的計算機採集系統實現了rheed圖像和rheed強度振蕩的實時監測。實驗發現在400生長的gasb薄膜為非晶態，溫度升高到500薄膜轉變為單晶。利用原子力顯微鏡對不同生長速率和襯底溫度生長的gasb薄膜的表面形貌進行觀察分析，並與模擬結果進行比較。
  7. Through analyzing all kinds of construction methods of building metro station under shield driven method in many countries, this paper studies the construction technique ( method ) of building metro station under shield driven method, taking in guangzhou no. 3 metro line, and linhe xilu station as the actual object. according to station class, function and topography and geology, the station schemes of twin - bore tunnel ( island ), firstly, three parallel tunnels ( island ), tri - bore tunnel ( island or side ) and four parallel tunnels ( island or side ) are proposed. secondly, the shape and main parameters of station structure on two schemes are analyzed with load - structure mode, for different overburden depth of tunnel and lining thickness, etc. thirdly, the construction process is simulated in 2d fem.,

    根據建站的規模、使用功能及站位地形地質條件，提出了兩連拱結構島式站臺車站、三條平行隧道島式站臺車站、三連拱結構島式和側式站臺車站以及四條平行隧道島式和側式站臺車站方案；採用荷載?結構模式，對四種方案的主體結構的形式和重要參數進行分析研究，分不同的埋深、襯砌結構厚度和拱形結構的拱跨比進行了多組數值計算；採用平面有限元方法對四種車站結構的開挖施作過程進行了模擬分析。
  8. Ptfe is one of the most corrosion - resistant materials in the world. however it has defects such as the hot expansion and cold contraction rate is10 times larger than that of steel and the original cold fluidity ( creeping ) etc. therefore, as temperature increases, ptfe extends so excessively that it would collapse and then block the flow of media ; as temperature decreases, ptfe contracts so excessively that it would be ripped and then cause leakage

    Ptfe是當今最耐腐蝕的材料之一，可它被製造成襯里的時候，會存在熱脹冷縮比鋼鐵十多倍及固有的冷流性等缺陷，致使ptfe襯里管道、設備，在使用過程中，溫度高時， ptfe襯里層會伸長過多而內癟，阻塞了介質流通；溫度低時， ptfe層會收縮過大被拉裂而泄漏。
  9. Radical ideologies require to contrast to their own goodness the wickedness of some other system.

    凡是過激的意識形態，都需要有另外一個丑惡的制度作對比，才能襯托出自己的善良。
  10. Furthermore, the growth and the study of self - organized quantum dots structures become more and more important recently, and the application of self - organization technique become wider and wider in this thesis, we address the theory of film growth and the growth technique firstly more, the ways and characteristics of surface detection are prescribed we mainly report the growth process, results and discuss of self - organized quantum dots structures in the a12o3 substrates by s - k mode using ecr - mocvd, in the espd - u device the growth art of ain epilayer which is the preliminary foundation of self - organized gan / ain quantum dots structures, including the substrate cleaning, nitridation, the growth of buffer and the growth of gan and ain epilayer, is discussed we deliberately compare the test result of rheed xrd and afm and achieved the optimalized condition of ain at last we have successfully realized the growth of ain which is much smooth and better crystal quality moreover, we grow the self - organized gan / ain quantum dots structure in s - k mode because the limits of the heater temperature, we can not grow the atom - smooth epilayer of ain until now so we could not grow better quantum dots which have small diameter and big density but the self - organized quantum dots structures with better quality will be realized successfully if the substrate temperature is increased the thesis study belong to my tutor subject of national nature science foundation ( 69976008 )

    本論文主要論述了在espd - u裝置上，採用電子迴旋共振等離子體增強mocvd （ ecr - pamocvd ）方法，在藍寶石襯底上通過s - k模式自組裝生長gan aln量子點結構的生長工藝、結果及討論。而重點分析了自組裝生長量子點之前的aln外延層生長工藝，包括襯底清洗、氮化、緩沖層的生長和gan 、 aln外延層的生長；通過高能電子衍射、 x射線衍射和原子力顯微鏡測試，並且對這些測試結果進行了詳細的比較研究，得出了較優化的工藝條件，生長出了晶質較好、表面較平整的aln外延層；進而採用s - k模式自組裝生長了gan aln量子點結構。由於實驗裝置加熱爐溫度的限制，我們沒有能夠生長出原子級平滑的aln外延層表面，因而沒能夠生長出密度比較大和直徑比較小的量子點。
  11. In the experiments, we also found the - sources flow rate, temperate of the substrates, annealing time and annealing temperature have an important infuence to epitaxial quality of the films

    在實驗過程中，我們也發現-族源氣體的流量比、襯底溫度、退火時間和退火溫度對外延晶體的生長質量也有重要的影響。
  12. The pixel size of p + / n - well / p - sub structure is 100 umx 100 n m, fill factor is 77. 6 %. it can obtain target information with illuminance intensity in the range of 0. 011x ~ 98, 0001x, and the sensor photoelectric sensitivity is 35v / lx ? s. when the method of changeable reset frequency double scanning is used, the photoelectric dynamic range can be 139. 8db, which is high in the 0. 6 um level cmos image sensors already reported

    在對感光單元進行器件物理結構優化的研究中，通過採用深結深光電管結構，提高了傳感器的感光響應，其中p m階」襯底結構的傳感器面積為100umx100urn ，感光面積百分比為77石，可對0刀98 ， 000lx照度的目標信號進行傳感，感光靈敏度大於3sv ix ? s ，採用了變頻兩次掃描后，動態范圍可達139
  13. The tight plastic - lining technology is to adhere plastic powder inside steel pipe smoothly with method of metallurgical powder. comparing to common plastic - lining, tight plastic - lining with good intensity, has avoided the trouble of dropping and cracking. specially, the tight nylon - lining pipe can be used carrying particulate medium matter and solidpowder with excellent wearability

    緊襯塑工藝採用粉末冶金法將塑料粉末均勻地附著在鋼管內表面，融熔流平、緊密地和鋼管本體結合在一起，與普通襯塑相比，塑料與鋼管的結合強度好，避免了普通襯塑管與鋼材基體結合力差容易脫落、開裂的毛病，特別是緊襯尼龍管道，具有優異的耐磨性，可輸送各類含固體顆粒介質、及粉體。
  14. 4. combined with the design of the three gorges prestressed concrete penstock with steel liner in the three gorges power. station, the consistence among the results of theory calculating, the analysis of plane finite element and three dimensional finite element is proved, the concrete stress distributions of the prestressed concrete penstock are analyzed with different steel liner thicknesses, different crack resistances, different concrete thicknesses and different initial radial gaps between steel liner and concrete. the feasibility of the design method of prestressed concrete penstock with steel liner is proved

    結合三峽電站鋼襯預應力混凝土聯合受力壓力管道的設計方案選擇及論證分析，對比分析了鋼襯預應力混凝土壓力管道理論計算、平面有限元和管壩整體三維有限元分析結果的一致性，確定了管道結構在不同鋼襯厚度、不同抗裂度要求、不同外包混凝土厚度及不同鋼襯與管壁混凝土間初始徑向間隙等因素影響下的內力分佈規律，驗證了鋼襯預應力混凝土壓力管道的設計方法。
  15. By changing the negative bias current density, gaseous ratio and total pressure, nanocrystalline diamond film is prepared by ion - assisted bombardment method at the substrate temperature of 700 ? 00 ? and mixture gaseous of ch4 and h2 the effect of growth parameters on the diamond film is studied. the diamond film presents very low compressive stress and excellent field emission character

    採用離子輔助轟擊法，以ch _ 4 、 h _ 2為源氣，襯底溫度為700 900 ，通過改變襯底負偏壓、 h _ 2和ch _ 4氣體比例以及工作氣壓，制備出納米金剛石薄膜，並對工藝參數對金剛石薄膜沉積的影響進行了研究。
  16. The processing parameters of preparing plzt electro - optic films were 400 of substrate temperature, 100w of sputtering power, 1 : 6 ratio of oxygen to nitrogen and 650 of annealing. the processing parameters of preparing sno2 film were room temperature of substrate temperature, 200w of sputtering power, 1 : 2 ratio of oxygen to nitrogen and 600 of the annealing temperature

    制備plzt電光薄膜的最佳工藝參數為:襯底溫度400 ，濺射功率100w ，氧氬比為1 : 6 ，退火溫度為650 ;而制備二氧化錫透明電極的最佳工藝參數為:襯底溫度室溫、濺射功率200w 、氧氬比為1 : 2 、退火溫度為600 。
  17. The dissertation mainly focuses on variation of the structure of a - si : h as functions of the dilution ratio of h2 / sih4, substrate temperature and substrate position at low microwave power

    在低微波功率下，本論文著重研究了h2 sih4稀釋比、襯底溫度和襯底位置對a - si ： h薄膜結構的影響。
  18. Their structures and optical properties were compared and analyzed. 2 the silver films were prepared at the room temperature and 77k on glass substrates. the microstructures and optical properties of the ag films were studied with the xrd, sem and ellipsometer, respectively

    常溫和77k溫度玻璃襯底上金屬（ ag 、 cu ）薄膜的制備，以及常溫和77k玻璃襯底上ag薄膜的表面結構及光學性質的比較研究。
  19. This paper presents the effects of some features on the productivity of raw c60 materials, such as distance and approaching speed of electrodes, helium partial pressure and arc current etc. then we separate and purify the raw materials and obtain pure solid c60 of 99. 9 % and compare the purification efficiency and effect of different fluxion phase and fixed phase and discuss the effects of the experimental conditions, such as the depositing speed, the type of the substrate, the surface structure of the substrate and the temperature of the substrate. finally, we use xps, afm, ultraviolet, infrared and raman to analyze the component, structure and feature of the films qualitatively and quantitatively

    本文首先研究了氦氣分壓、弧電流大小、電極間距以及電極推進速度等實驗條件對制備c _ （ 60 ）粗品產率的影響；接著選用柱色譜法分離提純得到了純度大於99 . 9的c _ （ 60 ）固體，比較了不同流動相和固定相的提純效率和效果；然後採用自己改進后的真空鍍膜機，利用電阻式加熱蒸鍍方法，得到了純c _ （ 60 ）薄膜和不同摻雜比的銀摻雜薄膜；探討了沉積速率、襯底種類、襯底表面結構以及襯底溫度等實驗條件對薄膜結構的影響；最後通過xps ， afm ，紫外，紅外，拉曼對薄膜的成分、結構和特性作了定性和半定量分析。
  20. Glass spacers are mixed with seal material to determine the thickness of lcd - panel, it is very important to the contrast, feedback time and visual angle of lcd

    摘要玻璃襯墊主要用來控制液晶盒的厚度，對液晶顯示器的對比度、響應時間和視角都有重要的影響。
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