絕對發光度 的英文怎麼說

中文拼音 [juéduìfāguāngdù]
絕對發光度 英文
absolute luminosity
  • 絕 : Ⅰ動詞（斷絕） cut off; sever Ⅱ形容詞1 （完全沒有了; 窮盡; 凈盡） exhausted; used up; finished 2 ...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 發 : 名詞（頭發） hair
  • 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） ...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 絕對 : absolute
  1. Our cosine correctors couple to optical fibers and spectrometers for relative and absolute spectral intensity measurements, for emissive color applications, and for evaluation of light sources such as leds and lasers

    我們的餘弦校正器可與光纖和光譜儀連接，用於相對光譜強度和絕對光譜強度測量、發射光譜測量，以及對led光源和激光光源進行評價。
  2. Abstract : based on the objectivity of space, time and their measuring, the author gives a ideal experiment of space and time measuring, educe the difference between true time and metrical time ( this difference results from the finity of light speed ), thus proves the relativity between metrical time and true time and the relativity between given reference points, gives the express formulas of relative velocity

    提要：從時空及時空度量的客觀性、絕對性出發，通過具體的空間、時間測量理想實驗，導出測量時刻、時間與客觀時刻、時間的差異（這種差異的根源在於光速傳播的有限性） ，從而說明測量時刻、時間對于客觀物理量及不同參照點的相對性，給出了客觀勻速直線運動的相對速度表達式。
  3. To search for high - velocity molecular emission toward massive star formation regions, and to study the connections between h2o masers, iras objects and outflow properties, we carried out a co observation for a h2o maser sample. we found that most of the objects have excess high velocity emission produced by outflows ; we find a significant correlation between co line full widths and iras luminosities. the widths are proportional to the iras luminosities

    通過在大質量恆星形成區搜尋高速分子輻射，並且研究它們與星際h _ 2o脈澤源和所聯系的紅外源之間的關系，我們發現絕大多數源都存在著氣體的高速運動並且它們是由分子外流產生的；我們同時發現在co分子的譜線全寬和所對應源的紅外光度之間存在很好的相關性，線寬隨紅外光度增加而變大。
  4. To investigate the space / time distributions and occurrence and evolution of such events, the diffusion pattern over deserts, turbulent transfer features in sandstorm weather, the particle size distribution, mass concentration and its distribution, optic properties, chemical composition and physical factors responsible for the initiation of raising sands, we made integrative observation and sounding of sandstorms deep in the large - scale desert area, including tengri, badanjilin and maowusu, with the items consisting of micrometeorological measurement, 3d wind observation, data from kb - 120 and anderson samplers of mass concentrations of sands with their spectrum, the distribution of aerodynamic particle sizes from the aps3310a, retrieval of aerosols " optic depth from sunphotometer data, assay of the chemical composition by means of neutron activiation analysis ( naa ) and integrated study of all related factors for causing sandstorm to occur, based on the observations of all kinds

    利用所取資料，系統分析了不同強度沙塵天氣條件下沙塵氣溶膠質量濃度和質量濃度譜、粒子譜分佈、光學厚度、化學組分等特徵；綜合分析了影響沙塵起動的諸物理因子在沙塵起動中的作用；用沙塵輸送模式對一次沙塵暴天氣造成的泥雨過程的形成機制進行了模擬。歷史氣象資料統計分析表明，沙塵暴有其高發期（ 4 、 5月）和高發時段（ 14 - 20時） ， 14時到20時之間發生的沙塵暴約占沙塵暴總次數的66 。揚沙和沙塵暴天氣條件下，湍流動量通量和湍流感熱通量都是重要的湍流交換，沙塵暴發生前近地層的超絕熱不穩定對沙塵暴天氣有加強作用。
  5. Abstract : we have studied the polarization beats spectroscopy with phase - conjugation geometry in a cascade three - level system. it was found that the accuracy for the energy - level difference measurement is determined by the homogeneous linewidths of the optical transitions. under the condition for the occurrence of beating, the frequency difference of the beat between two independent light sources could exceed the laser linewidth. the measurement accuracy for laser absolute frequency could reach the same order of magnitude as the laser linewidth

    文摘:研究了級聯三能級系統中的相位共軛極化拍頻光譜術.發現其對能級差的測量精度決定於光學躍遷的均勻增寬.在符合拍頻條件時，兩獨立光源拍頻的頻差可以超出激光線寬，激光絕對頻率的測量精度可達到與激光線寬同一量級
  6. A new method of absolute calibration of photodetector sensitivity based on spontaneous parametric down - conversion ( spdc ) biphoton field is described. the process of spdc is studied theoretically. the single photon detection probability and two - photon coincidence probability are derived and the calibration principle for photodetectors is explained. an experimental system has been set up. the sensitivity of a photon - counting photomultiplier tube was measured, and the results were compared with those obtained using conventional method

    討論了一種基於自發參量下轉換雙光子場絕對校準光電探測器靈敏度的新方法，著重推導了對自發參量下轉換過程中產生的單光子的探測概率和雙光子的符合速率，從而闡明了絕對測量光電探測器量子效率的原理.基於這一方法對光子計數型光電倍增管的響應靈敏度進行了測量，並將實驗結果與常規方法測得的結果進行了比較
  7. Another person pionering the studies in germany reported that when people were put together in groups isolated from external time cues of light, temperature and humidity, their own complex internal timekeeping rhythms became desynchronized ; then they resynchronized in unison

    另一位在德國研究此問題的領頭人公布說，將人們聚攏起來，同時使他們隔絕于光線、溫度、濕度等反映外部時間的信息，人們自身復雜的生物鐘節律先是會各自發生偏差（即:對時間的感知出現不同的認識） ，然後又會重新恢復到一致的狀態。
  8. Microwave radiation was detected from all directions in the sky. later on, scientists realized that the origin of this radiation is cosmological. the spectrum matches with that emitted by a blackbody of temperature 3k

    1965年，科學家發現天空任何方向皆可偵測到微波，這是一個重要的天文發現，但研究員卻懵然不知，后來才知道這些微波來自宇宙，而這些輻射的光譜對應于絕對溫度為3k的黑體輻射。
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