離心率 的英文怎麼說

中文拼音 [líxīnlǜ]
離心率 英文
exzentritaet eccentricity
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 率 : 率名詞（比值） rate; ratio; proportion
  1. At neighbouring points, the eccentricity of the light ellipse is small.

    在鄰近的點上，光橢圓的離心率較小。
  2. Presents the energy saving principle of a frequency - controlled pump and points out the applicability of the law of similitude for centrifugal pumps and the conception of constant efficiency curves

    摘要闡述了循環水泵變頻調速的節能原理，提出離心水泵相似定律的適用性和等效率曲線概念。
  3. In the first trial, combination of enzymatic digestion was used to prepare suspensions of spermatogenic cells from adult mouse testis, and then a modified discontinuous percoll gradient centrifugation method ( 15 %, 22 %, 30 %, 40 %, 50 %, 60 % ) was introduced to isolate spermatids from the cellular suspensions. the content of spermatids in each isolated fraction by percoll method was determined by morphology ( wright - giemsa stain ) and flow cytometry analysis, and the viability of spermatogenic cells was assessed by using eosin y exclusion test

    在第一部分試驗中，首先利用連續3次組合酶消化成年小鼠睪丸制備睪丸細胞懸液，然後經6層非連續percoll梯度離心法（ 15 、 22 、 30 、 40 、 50和60 ）分離，通過形態學和流式細胞術鑒定南京醫科大學碩士學位論文各個percoll組分中精子細胞的含量，並以伊紅y排斥試驗測定細胞的存活率。
  4. Through the special studies on impacts to atomizing and humidifying effect from such factors as the firing pin type, centrifugal structure, higher spraying pressure, less aperture, initial water temperature and original state of the air, some conclusions are obtained, such as : the centrifugal nozzle with firing pin type, high pressure and little aperture has bigger air eddy and atomizing angle. the spaying liquid has high velocity. the droplet is small, and the heat and mass transfer velocity is high

    通過對撞針型結構、離心式結構、較高的噴水壓力、較小的噴嘴孔徑、噴水初溫及待加濕空氣初狀態對霧化加濕效果的作用原理的重點分析，得到：撞針型高壓小孔徑離心式噴嘴具有較大的空氣渦與霧化角，噴出的液體流速高、液滴小、水與空氣傳熱傳質速率高，撞針型結構提高了霧化加濕效率，高壓小孔徑的特點為霧化加濕提供了較大的能量，而噴水初溫的升高會減小水的粘性力和表面張力，從而優化加濕效果。
  5. The minor planet … please find the minimum possible value of the eccentricity of the asteroid ' s orbit

    此句可否換個說法： 「請給出這顆小行星可能的最小的軌道離心率數值。 」
  6. The negative photoconductivity effect was found in the dimixing phthalocyanine composites. the experiment results indicated that the negative photoconductivity effects were closely related with the partial charge transfer from the center metals to phthalocyanine rings, and the separation efficiency of photocarriers was a key factor to the photoconductivity

    結果表明，共混復合后，其光電導性能表現出負效應，並發現酞菁中心金屬與其相連的氮原子之間的部分電荷轉移是引起復合體系光電導性能變化的根本原因，同時復合體系中的電子空穴對的分離效率是影響光電性能的一個重要因素。
  7. Another is curvature - parabolic method according to centrifugal acceleration of the vehicle in settlement section

    另一種是依據汽車在沉降斷面上行駛時的離心加速度來進行控制的曲率拋物線法。
  8. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。
  9. The main product of our company includes : polyurethane constant slot screen panel with high hole - rate tied to mining vibrating screen, stainless steel screen panel, centrifuge basket, high strength milling - resistance pipe, milling - resistance valve of all kinds and steel structure

    簡介：本公司提供：與礦用振動篩配套的高開孔率聚氨脂連續篩縫篩板；不銹鋼篩板；離心脫水機篩藍；高強度超耐磨管；各種耐磨閥門及鋼結構。
  10. The dynamo runs at rull speed to drive main shaft, then the main shaft makes the emulsifying wings in emulsification grove rotate, which absorbs the liquid in its brand groove into ring groove through guide vanes on upper and lower sides of the groove. the vanes spins circularly at high speed with the main shatf as center, and the blade and emulsificaton groove cut and crush it continuously. after that. it gers squeezed by the vanes highspeed centrifugal rotation. at last, it finishes isotropt emulsification tratment within extremely short time after continuous circulating mixing

    由電動機全速運轉帶動主軸，經主軸轉動乳化框槽內之乳化翼片，使其將桶槽內之液體經框槽上、下兩側之導流葉片吸入環狀框槽內，經以主軸為中心高速圓周旋轉葉片；連續使乳化翼端刀面與乳化框間極小之間系高頻率之強力切割剪斷、粉碎，再借葉片高速離心旋轉排擠，持續循環混合，以極短之時間即可完成均質乳化之處理。
  11. In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam

    同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸，測量了不同光闌孔徑和不同稜角情況下的最大無衍射距離和傳播軸附近橫截面內微小光孔中的光強，實驗結果顯示當激光光束經過軸棱錐轉換後有一段距離功率變化很小，且分佈近似貝塞爾分佈，符合無衍射光束的特性;經過聚焦后，呈現三維分佈中空的光束bottlebeam ，實驗結果與理論分析基本吻合。
  12. As the bearingless motor is constructed with contact - free bearings, it works free of wear, frictionless, free of abrasion and without lubricants. with the compact construction, low loss and other features, the bearingless motor demonstrates the potential applications in space technology ", science research, high vacuum technology and ultra high - speed drives

    其不僅具有磁軸承電機的優點，同時具備軸向利用率高、體積小、功耗低的特點，在空間技術、科學研究、真空及凈室技術、機床、離心機等領域具有廣泛的應用前景。
  13. The following results are obtained : ( 1 ) the flow in rotating helical pipes are affected by dean number, curvature, torsion ( or germano number ), the ratio of the coriolis force to the centrifugal force f number ( or rossby number ) and the geometry of the cross section

    研究結果表明： （ 1 ）旋轉螺旋管道流動特性受dean數、曲率、撓率（或germano數） 、科氏力與離心力之比f數（或rossby數）以及截面的形狀五種因素的影響。
  14. An outsider ' s review of the astronomical theory of the climate ： is the eccentricity - driven insolation the main driver of the ice ages

    一個旁觀者對氣候天文理論的評論：冰期的主要驅動器是不是離心率驅動的日射？
  15. Distinctive centrifugal impeller to handle clean medium not containing solid particles, featured by little vibration, low noise and high efficiency ; open impeller to handle unclean liquid containing solid particles and short fiber, featured by stable operation and non - clogging

    採用獨特的離心式葉輪，供輸送不含固體顆粒等清潔的介質，振動噪音低，效率高；採用開式葉輪，供輸送不清潔帶有固體顆粒及短纖維的液體，運行平穩、不堵塞。
  16. Its atomized parcel is so small that no drip is separated out. this kind of centrifugal nozzle has high humidifying efficiency and low energy cost, which could be used in many situations in textile factories such as directly humidifying in workshop and humidifying in air pipeline

    撞針型高壓小孔徑離心式噴嘴的霧化粒子細小、無水滴析出、加濕效率高、耗能少，可直接向車間加濕，適用於紡織廠等多種應用場合。
  17. Based on it, a new kind of helix slow - wave structure named elliptical helix slow - wave structure used in helix traveling wave tubes has been detailedly investigated. by studying the rf characteristics of this slow - wave structure, it ’ s found that higher operation frequency and interaction impedance will be obtained by increasing the eccentricity of helix or decreasing it of the shield. meanwhile, great potential of improving system bandwidth has also been found if the eccentricity of helix or shield or the two are properly choosed

    本文對近幾十年大功率行波管的研究進展進行了簡單討論，並在此基礎上研究了一種可應用於螺旋線行波管的新型的螺旋線慢波結構，即橢圓螺旋線慢波結構，通過對該螺旋線高頻特性進行詳細分析，我們初步認為，選擇適當的螺旋線和屏蔽筒離心率，可以提高系統工作頻率，增加系統耦合阻抗，並且具有改善系統帶寬的潛力。
  18. The proportion of new teachers leaving has hovered around 50 percent for decades, said barry farber, a professor of education and psychology at columbia university

    哥倫比亞大學教育心理學教授farber指出，在過去的幾十年裡，美國青年教師的離職率已高達50 。
  19. In the chinese contact centre industry, where 87 % of the industry are female and 82 % are less than 24 years old, the agent turnover rate is about 17 % for full timers and 29 % for part - timers per annum

    在中國呼叫中心產業中， 87 %的員工是女性， 82 %的不到24歲，每年全職員工的離職率大概是17 % ，而兼職人員則是29 % 。
  20. Methods of test for production control of concrete method of test for surface moisture in fine aggregate by centrifugal force

    混凝土生產控制的試驗方法.用離心力檢測細集材表面含水率的試驗方法
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