有效光程長度 的英文怎麼說

中文拼音 [yǒuxiàoguāngchéngzhǎngdù]
有效光程長度 英文
effective path length
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 光 : Ⅰ名詞1 （照耀在物體上、使人能看見物體的一種物質） light; ray 2 （景物） scenery 3 （光彩; 榮譽） ...
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 長 : 長Ⅰ形容詞1 （年紀較大） older; elder; senior 2 （排行最大） eldest; oldest Ⅱ名詞（領導人） chief;...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 有效 : effective; valid; efficacious
  • 長度 : length; longitude; size; extent; footage
  1. The high - power semiconductor quantum well ( qw ) laser is a kind of luminescence device with superior performance, it has longe - lived, low threshold current density, high efficiency, high luminosity and excellent monochromatic, coherence, directionality, etc. the high - power semiconductor laser is widely applied to the fields, such as military, industrial machining, communication, information processing, medical treatment, etc. the material ' s epitaxy is the foundation of the whole laser ' s fabricating, and it has important influence on the optics and electricity performance about the laser

    大功率半導體量子阱激光器是一種性能優越的發光器件，具有壽命長、閾值電流密度低、效率高、亮度高以及良好的單色性、相干性、方向性等特點，廣泛應用於軍事、工業加工、通信及信息處理、醫療保健等領域。材料的外延生長是整個激光器器件製作的基礎，對器件的光學和電學性能有著重要的影響，生長不出優質的材料體系，獲得高性能的器件就無從談起，因此，材料的外延生長便成為了整個半導體激光器製作過程之中的重中之重。
  2. The results show that fbg sensors have outstanding waterproof capability, high measurement precision, better long - term stability and more remote transmission signal, so fbg sensing technology is a reliant and effectual instrument for under - water structure project monitoring

    開展的光纖光柵應變、溫度傳感器在水下工程領域中較大規模的應用研究結果表明： fbg具有很好的防水性能，測試精度高，長期穩定性好，信號傳輸距離遠，為水下結構的長期監測提供了一種可靠有效的手段。
  3. Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes

    本文所做的主要工作包括以下幾個內容：一、選取了常見的熱膨脹系數大的材料製作封裝元件，經過多次一80到80反復測試，封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷，封裝材料具有良好的溫敏穩定性及復用性，與光纖相容性較好；二、對光纖光柵進行簡單、實用的封裝處理，就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實驗，得出了初步的結論；三、對溫敏和溫度補償式封裝的實驗數據進行了詳細的分析和對比，從數字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析，在大量實驗數據分析結果的基礎上，總結出哪種材料封裝效果更好，以及如何有效的減小實驗誤差。
  4. Several key techniques of carving and milling machine cnc system are deeply studied they include : the transformation, data rebuild and interface design of huge volume nc program produced by cam ; the algorithm of cubic parametric spline pre _ interpolation and high speed real time interpolation in the cnc system, which. will gain a much higher surface precision and cutting speed ; methodology and algorithm of movement velocity acceleration control on a real time forecast _ and _ prejudge basis is designed. therefore, a smooth movement is insured. the shake and noise problem caused by non _ uniform pules for driving stepping or servo motor is solved by an improving algorithm to generate uniform pules

    同時，本文對基於統一的pc平臺的雕銑機數控系統中的幾項關鍵技術進行了深入的研究，包括： cam生成加工程序的傳送、接收、讀取及其加工鏈表的生成和實時重構；對cam生成的離散數據進行三次參數樣條插值和基於累加弦長的三次參數樣條插補控制，保證加工工件表面的精度和光順性；設計具有「前瞻」功能的自動升降速控制方法，保證加工過程的平穩性；通過脈沖均勻化，有效地解決加工過程中因為脈沖不均勻而引起的震動問題。
  5. The high - intensity - discharge ( hid ) lamps are widely used in lighting system for the high luminous efficacy, long life and good color rendering. high - pressure - sodium ( hps ) lamps have the best combination of the above properties and are considered as ideal light sources. therefore the design of the electronic ballast for the lamps is an important part of the green lighting project

    高強度氣體放電（ hid ）燈以其光效好、壽命長、顯色性好而在照明領域得到廣泛應用，高壓鈉燈（ hps ）即為一種具有上述優點的理想光源，而設計與之相匹配的電子鎮流器是實施綠色照明工程的重要組成。
  6. The analyses given in this paper to quasi - three - level for 946 nm laser are complete. the relation between 946 nm laser transmission and optimal crystal length has been derived from the rate equations describing the population inversion and the photon density in the laser cavity in the steady - state case. the minimal claims to coating have been given on the base of contrasting 946 nm transmission with 1064 nm transmission in the condition of different cavity losses and how the pump beam radius in the laser crystal and optimal crystal length affect the laser threshold and output power of 946 nm laser has been given as well

    對產生946nm譜線的準三能級結構給出了較為完整的分析，利用激光諧振腔處于穩態時的速率方程，導出了準三能級nd ： yag946nm起振時，透射損耗與最佳激光晶體長度的關系，在與1064nm透射損耗相比較的基礎上，給出了不同的腔損耗情況下的最低鍍膜要求，並且給出了激光閾值、輸出功率和最佳激光晶體長度及泵光光斑大小的關系，這為設計室溫下高效運轉的946nm激光器的提供了理論基礎，這種分析方法對研究此類低增益，準三能級或三能級激光系統輸出特性有借鑒意義。
  7. Automatic tester for dial gauges is an intelligent instrument unified mechanism light and electronic. the grating displacement sensor that has high accuracy ( length gauge ) and camcorder is image sensor consummately automatic sampling is adopted. it is controlled and handled data by computer. so it has realized the intelligence and automation of calibrating course. the instrument has features of high precision, efficiency, flexible and convenient in operation, and so on

    指示表自動檢定儀是機、光、電一體化的智能化儀器，採用了具有高精度的光柵位移傳感器（長度計）和ccd攝像機作為圖像傳感器完成自動采樣，用計算機進行控制與數據處理，從而實現了檢定過程的自動化和智能化，使儀器具有高精度、高效率、操作靈活、使用方便等特點。
  8. Even if experimenters bounce the beams to and fro to increase the effective length of an interferometer ' s arms to more than 100 kilometres, the expected difference in length between the two beams ' paths still amounts to less than a hundred - millionth of the diameter of a hydrogen atom

    盡管已經讓激光束反復反射來使激光干涉管臂的有效長度增加到超過了100公里，但在光路路程之內，兩束光波長差仍小於氫原子直徑的一億分之一。
  9. The computational results of strong scintillation with weak turbulence but long propagation length indicate that the number of branch points in distorted optical field has a tendency to saturation

    另外，通過對湍流較弱但傳輸路徑較長的強閃爍條件下畸變光場中出現的相位不連續點數目的計算發現，當湍流效應達到一定程度時，相位不連續點的數目有達到飽和的趨勢。
  10. We introduce a model of random birefringent single mode fibers, and the general nonlinear propagation equations of dual - lightwaves in random birefringent fibers are deduced. the characteristics of polarization mode dispersion in 2 + 10gb / swdm system is studied. it is found that pmd in wdm system can be effectively suppressed by the synchronous modulation technique

    我們引入了隨機擾動雙折射單模光纖模型，導出了雙波長的光波在隨機雙折射光纖中的非線性脈沖傳輸方程；在此基礎上，研究了偏振模色散對2 10gb swdm系統中脈沖序列傳輸的影響，並採用同步幅度調制控制技術有效地降低了偏振模色散的影響。
  11. Diode pumped solid - state laser ( dpssl ) is a kind of long - life, stable, compact, efficient all - solid laser. it has considerably replaced the other type of lasers

    二極體泵浦固體激光器具有光束質量好、壽命長、工作穩定、結構緊湊、效率高等優點，已經在很大程度上替代了其它類型的激光器。
  12. We researched the influences of systhesis temperature, heat preservation time, eu + concentration, reduction surrounding feeling and flux on luminescent properties of sral2o4 : eu2 + phosphors, optimized the experiment conditions and reduced systhesis temperature about 100 c. we found that the systhesized sample ' s luminescent brightness is better with increasing systhesis temperature, but the phase component is more complex. we found that the luminescence brightness of sample appear a increasing process at first, and then a reducing one with the raise of eu2 + concentration, it indicated that the luminescence brightness is not better if the eu2 + concentration is too high or low. we found that the systhesized sample can not bright at too long heat preservation time, and the luminescence brightness is lower at too short heat preservation time. we found that particle diameter is bigger, the wavelength of emission peak is longer

    研究發現合成溫度高，合成樣品的發光效果好，但物相組成也較復雜； eu ~ （ 2 + ）離子在一定摻雜濃度范圍內，合成樣品的發光亮度先是出現一個提高過程，然後是一個降低過程，說明eu ~ （ 2 + ）離子濃度高或低都不利於合成樣品發光；保溫時間較長，合成樣品不發光，保溫時間較短，合成樣品發光效果不好，只有合適的保溫時間才能合成發光效果好的樣品；合成樣品的粒徑大小與發射峰的位置具有一定的關系，粒徑越大，發射峰越偏向長波方向；助熔劑對樣品的合成溫度和發光性能都有影響，助熔劑的量較低時，主要表現為助熔作用，對發光影響不大，助熔劑的量較高時，使得樣品發光亮度降低和余輝時間縮短；還原方式的不同，合成樣品的發光性能也不一樣。
  13. The explicit method is widely used for its simpleness and little memory consumed with local time step and variable coefficients implicit residual smooth to accelerate the convergence procedure. according to yoon and jameson ' s ideas, an efficient implicit lu - sgs algorithm is carefully constructed by combing the advantages of lu factorization and symmetric - gauss - seidel technique in such a way to make use the l and u operators scalar diagonal matrices, thus the numeric algorithm requires only scalar inversion. the computational efficiency is greatly improved with this scheme

    顯式方法具有簡單，消耗內存小等優點，並採用當地時間步長、變系數隱式殘值光順等加速收斂措施，在定常流動的模擬中得到了廣泛的應用;根據yoon和jameson提出的簡化正、負矩陣分裂，構造的l 、 u運算元只需進行標量對角陣求逆，極大提高了流場數值求解過程的計算效率;採用newton類型的偽時間子迭代技術使時間推進精度提高至二階。
  14. We discuss the effect on the focusing of the probe beams for the five initial parameters : the amplitude of the pump beam, the separation between the pump and the probe beam centers, the wavelength ratio of the pump and the probe beams and the ratio of the initial beam widths at the directions of x and y. our numerical results show that, more the amplitude of the pump beam, the wavelength ratio of the pump and the probe beams and the ratio of the initial beam widths at the direction of y, more the probe focus ; the separation between the pump and the probe beam centers and the ratio of the initial beam widths at the direction of x have optimum values, respectively

    研究了泵浦光束輸入振幅、泵浦光束-信號光束初始偏移、泵浦光束-信號光束波長比和泵浦光束-信號光束x 、 y方向的初始束寬比五個參量對信號光束聚焦程度的影響。數值模擬結果表明，泵浦光束輸入振幅越大、泵浦光束-信號光束波長比越大、 y方向束寬比越大，信號光束聚焦程度越大；泵浦光束-信號光束初始偏移和x方向初始束寬比都存在一個最佳值，使得光束聚焦達到最佳效果，有趣的是這兩個最佳值的比值基本保持不變約為0 . 4 0 . 6 。
  15. Effective path length

    有效光程長度
  16. The company establishes the special bee product examination center and the laboratory, and to develop comprehensive laboratory management system, formulating laboratory standard operating procedure room, purchase including highly effective liquid phase color spectrometer, gas phase color spectrometer, ultraviolet obviously spectrophotometer, elisa analysis, and other food security projects necessary testing equipment. employment has the higher school record and the chemical analysis specialty inspector, the establishment from the sample, receives the type, the examination, the primary data analysis, the result reported arranges integrity test routine which the difference analysis, the recording files away, establishing corporate self ? inspection system products

    高原羚蜂業有限公司建立專門的蜂產品檢測中心和實驗室，並制定完善的實驗室管理制度，制定實驗室標準操作規程，購置包括高效液相色譜儀、氣相色譜儀、紫外可見分光光度計、酶聯免疫分析儀等食品安全項目必要的檢測設備，聘用具有較高學歷和化學分析專長的檢驗員，建立從取樣、收樣、檢測、原始數據分析、結果報告到偏差分析、記錄歸檔的完整檢驗程序，從而確立產品的企業自檢體系。
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