點測光 的英文怎麼說
中文拼音 [diǎncèguāng]
點測光
英文
spot metering-
The concept of irradiance signal - to - noise ratio ( snr ) on the target plane and the minimum of the irradiance that can be detected by the detector was taken as the beginning, combined with a thorough analysis of the spectrum radiating feature of the target and the sky background, the atmosphere conditions, spectral filtering and the influence that the various components in the system have on the target irradiance on the detector ' s target plane and the background irradiance snr, the equation of the flying bomb ' s effect range affected by the point of burst measuring system is made, and all related factors that have an impact on the effect range are analyzed as well
從探測器靶面上輻照度信噪比的概念、探測器的可探測輻照度最小值出發，在詳細分析目標、天空背景的光譜輻射特性、大氣條件、光譜濾波技術以及系統各環節對探測器靶面上目標與背景輻照度信噪比的影響的基礎上，推導了炸點測量系統對爆炸的飛行彈體的作用距離方程，分析了影響作用距離的諸因素。4 - segment flash metering, average metering and local - focus - area - aligned spot metering selectable in custom function ; automatically activated by pressing the ae - lock button, af button, or the shutter - release button partway down
可在自訂設定功能中選擇四區域測光、平均測光、個別對焦區連重點測光；按下自動曝光鎖按鈕、自動對焦按鈕，或半按下快門釋放按鈕時會自動啟動Be a card - carrying member, take a photo gray card along : it ' s much better for setting digital “ white ” balance, for accurate spotmeter exposures with slide film, for a photofinishing reference point for color - print film, etc
作一個隨身帶著灰板的人，經常隨身攜帶一塊灰板（ 18 %輝） ：這樣很有利於你設定所謂的「白」平衡（使用數碼相機） ，如果使用反轉片拍攝的話可以用灰板來進行準確的點測光，在印製相片過程中可以作為片子里的一個參考點來進行色彩設定。Variscite helps with recalling past lives and is considered to be an excellent meditation stone. it balances the central nervous system and eases depression, fear, worry, anxiety and impatience
磷鋁石的折射率點測值較低，只有1 . 57 ，磷鋁石在長短波紫外線下均會出現惰性弱綠色熒光。Contact lenses - determination of back vertex power - measurement of contact lenses immersed in saline
接觸鏡片.后頂點屈光度的測定.鹽水中浸泡的接觸鏡片的測量The laser power is detected through the pd ’ s movement across the faculous region. when the value of the peak value of laser power is got, the power of the facular boundary points can be found according to definition of the facular boundary such as “ 1 / e ~ 2 ” theory. then the equation of the facular boundary can be made fitting by using the least square method, and calculate the beam divergence at last
採用兩個光電探測器分別檢測光束不同高度上的兩個光斑，在確定光斑中心最大光強值后，根據光斑截面尺寸的1 / e2定義，得到光斑截面邊界點的光強值，並以其為標準判定光斑截面的邊界點，對探測到的邊界點通過最小二乘法進行擬合，得到橢圓光斑截面的方程，根據空間幾何關系求出發散角。In this paper, the tunable optical characteristics, preparation for quantum dots, the value of core / shell structure, the advantages of quantum dots as fluorescent labeling, quantum dots biolabeling techniques and their application in life science were reviewed, and the future prospects was envisioned
摘要從量子點的光學特徵、制備、核殼結構的意義、量子點熒光標記物的優越性、量子點標記生物分子后在單個細胞及臨床組織樣品檢測中的應用等方面綜述了量子點在生命科學領域的研究進展。The chart of light energy distribution is obtained and the relation between parameters is proved after the data, which are the light energy measured at different points of screen, are processed by matlab tools
為了驗證理論結果，通過實測光幕面上不同位置點的光能，藉助matlab工具對實驗數據進行處理，得到光幕面內光能量的分布圖形，並且驗證了各參數間的關系。Based on the two postulates that the speed of light is constant and the laws of physics apply equally to all inertial reference frames, the theory predicts strange effects such as time dilation, length contraction and simultaneity of events varies according to viewers
基於兩個論點，即光速不變及物理定律可應用於任何慣性系統，狹義相對論預測了時間變慢長度收縮及同時事件是因觀察者而異等奇怪現象。Self - illuminated measuring mark
光點測標For example, the geometric effect and vignetting are simulated with the synthetic method in which they are modeled with ray tracing and then simulated with pixel - based processing. the effects of detector noise on imaging are simulated with the three - dimension model. the theory of pixel transfer function is extended and developed, and microscanned images of four patterns are simulated with good results
本文具有如下幾個突出特點：用光線追跡法分析建模，而用基於象素處理的綜合方法，模擬了光學系統中的幾何效應和漸暈現象；利用三維噪聲模型，模擬了探測器噪聲對圖像質量的影響；對象素傳遞函數理論進行了擴展和延伸，給出四種工作模式的微掃描成像系統的象素傳遞函數的具體數學表達式，並利用這些表達式模擬了探測器的空間效應和微掃描成像的圖像效果。Also, when shooting backlit or high contrast subjects, choose spot metering to achieve sensitive and highly accurate exposure settings
另外，當拍攝背光或高反差的主體時，可選擇點測光來進行更準確的曝光設定。They have been widely used in optical - fiber communication, satellite communication, super high speed computer, high speed measurement instrument, mobile communication, etc. since gaas is compound semiconductor, it is difficult to achieve high quality gaas crystal
Gaas器件與電路具有速度高、功耗低、噪聲小、耐高溫、抗輻射等優點，在光纖通信、衛星、超高速計算機、高速測試儀器、移動通信和航空航天等領域中有著重要的應用。We either use a real star or a light source on distant buildings for star test
我們採用真正恆星或者利用遠處建築物的光源來進行星點測試。As a rule of thuimb we never star test a mirror with incident light close to the ground
[根據實際經驗我們永不會利用靠近地面的入射光進行星點測試。Method for determining the coating melting point of photographic materials
感光材料塗層熔點測定方法Due to the advantages such as short response time, easy operation, and convenient to comprehend the wavefront modes, the hartmann wavefront sensor ( h - wfs ) is widely utilized nowadays in real - time adaptive optics system, turbulence statistical characterization, optical components test, light quality evaluation, laser atmosphere communication, the wavefront correction of ultrahigh power laser pulses, as well as human eye aberrations measurement. the detection accuracy is important to the performance of the whole optical system. considerable efforts have been performed in the investigation of h - wfs wavefront detection techniques in past years
哈特曼波前傳感器具有實時探測，易操作，可以直觀顯示波前畸變分佈等優點，被廣泛地用作自適應光學系統的波前信息探測和波前畸變補償，大氣湍流統計特性表徵，光學元件檢測，光束質量評價，超強激光脈沖波前整形，激光大氣通信以及人眼象差測量等各個領域之中，其探測精度的高低對整個光學系統的工作性能有著極其重要的影響。( 3 ). inas quantum dots covered with ingaas buffer and with alas buffer were measured by pl and trs spectra
（ 3 ）分別測量了加ingaas緩沖層和加alas緩沖層inas量子點的光致發光譜和時間分辨譜。Methods based on statistics for dimensional position and data processing were suggested for the calibration of the dimensional angle shown by a programmable dynamic target using linear matrix ccd and video interpretation. studies in this paper show that the programmable target system is functional and capable of testing photoelectric theodolite. consequently conclusions can be drawn that programmable dynamic target is new equipment to tes t photoelectric theodolite, not only can it check and test the performance, but also can measure the precision
得出了初步結論：可編程動態靶標由於配置了位置輸出元件和時間統一系統，實現了位置閉合，能對靶標的運動進行有規律的控制，克服了常規旋轉靶標的固有缺點，可以提供模擬目標的空間標準角，因此可編程動態靶標不僅可以作為跟蹤靶標使用，還可以作為測量靶標使用，是檢測光電經緯儀跟蹤性能和測角精度的新裝置。Studies on fluorescence quenching method for the determination of copper ions with cdte quantum dots
量子點熒光猝滅法測定銅離子的研究分享友人