射電亮度 的英文怎麼說
中文拼音 [shèdiànliàngdù]
射電亮度
英文
radio brightness-
This type of long persistent phosphor has the advantages of innocuity, no radioactivity, high luminescence, long duration and no need of electricity, so it can be regarded as high efficiency solid display material
它無毒、無放射性、亮度高、余輝時間長、不消耗電能，是一種高效節能的固體發光顯示材料。Radio astronomers are now able to synthesize the response of a partially filled aperture of large diameter and thus to map variations in nebular brightness.
射電天文學家現在已經能夠把部分充滿的大直徑孔徑進行綜合，從而描繪出星雲亮度變化圖。Aberration of electronic lens made by electron gun and aberration of magnetic deflection system made by dy are comprehensively investigated, so is the shadow mask ' s effect on electron beam landing screen error. the conclusion can be get that, because the distribution of electron beam landing screen ( distribution of luminance ) is affected by many kinds of factors, it cannot get the correct function by calculation, and should be get by measurement instead
全面分析了cpt電子槍發射系統形成的電子透鏡像差與磁偏轉系統形成的偏轉像差；分析了蔭罩的自身厚度與位移對電子束著屏的影響，並由此得出結論，著屏電子束分佈（即亮度分佈）受著許多因素的影響，理論分析是半定量的，著屏電子束分佈需要用精確的測量儀器來測量。Tonality depends on the reflected brightness of the terrain and can be electronically measured.
色調依賴于地質體反射的亮度，利用電子設備可以測量出來。Don ' t make tv and computer screens too bright. ensure adequate lighting by using lower wattage bulbs ( from 25w to 40w ) and avoid light hitting the eyes directly
電視及電腦螢幕的亮度要適中，保持環境有適量的光線，燈泡以25至40w的光度為最適中，避免光線直接照射眼睛。The chip is mainly applied to the portable electronic products with the following features : 2. 7v to 5. 5v input voltage range ; the 1mhz fixed frequency ; - 40 to + 85 operating temperature ; two digital inputs control on / off and select amongst three levels of brightness ; thermal shutdown and under voltage shutdown protection, low 0. 1 a shutdown current ; soft - start limits inrush current
該晶元主要應用於便攜式電子產品，其輸入電壓范圍為2 . 7 5 . 5v ，工作頻率為固定的1mhz ，可大幅度降低輸入紋波和emi輻射，工作溫度范圍為- 40 + 85 ，可使用外部使能控制信號調節led亮度及控制晶元關斷與否，具有過溫保護和輸入欠壓關斷保護功能，完全關斷模式下關斷電流可低至0 . 1 a ，具有軟啟動功能以限制啟動時的浪涌電流。Such a philips system combines color separation and synthesis and is used for reflective lcd display mode. a reflective lcd large screen display system with electronic - addressed mode is constructed. the specification is given as follows : brightness : > 100ansilm contrast ratio : 70 : 1 full color
在本文的第六章，闡述了利用改造的反射式液晶板，建立的應用philips棱鏡作為分色合色系統的反射式電尋址液晶板投影系統，亮度達到100流明以上，對比度約70 ： 1 。All light source of led cluster lamp apply the chip with the features of super - bright, low - loss light and high - antistatic, the led cluster with 50000 - 80000 hours life and soft and fresh color
A所有led射燈光源均採用超高亮度低光衰高抗靜電晶元，光源壽命可以達到8 10小時， led射燈光效柔和色澤艷麗。Led cluster lamp applies high bright led as light source with low power loss, long life, and low heat extraction, which also applies high - quality toughened glass as body and antistatic plating film as inner face with wide shooting angle, small size and easy installing
Led射燈杯採用高亮度的led作光源，具有功耗小，壽命長不發熱等特點。 led射燈燈體採用優質強化玻璃，內表面防靜電鍍膜處理。射燈投射角度大體積小，安裝方便。Led cluster applies high bright led as light source with low power loss, long life, and low heat extraction, led cluster light also applies high - quality toughened glass as body and antistatic plating film as inner face with wide shooting angle, small size and easy installing
Led射燈杯採用高亮度的led作光源，具有功耗小，壽命長不發熱等特點。 led射燈燈體採用優質強化玻璃，內表面防靜電鍍膜處理。射燈投射角度大體積小，安裝方便。By use of g. d. shen ' s tunneling cascade theory we have fabricated high performance and high power tunneling cascade ingaas / gaas / algaas 950nm / 990nm double wavelength strained quantum well lasers on the basis of former tunneling cascade high power lasers and high brightness light emitting diodes. the lasers " two peak wavelength are 95 ? nm and 990 ? nm. el spectrum ' s fwhm is 3nm
在以往隧道級聯大功率應變量子阱激光器及高亮度發光管的理論研究與實驗的基礎之上，採用沈光地教授提出的隧道級聯思想，成功研製出基於ingaas gaas algaas材料的高性能大功率隧道級聯950nm及990nm雙波長應變量子阱激光器，激射波長分別為952 2nm和990 2nm ， el譜的譜線寬度約3nm ，未鍍膜器件單面最大輸出光功率可達2w以上，閾值電流最低達120ma 。For floodlighting, the luminance and the color of the lighted object depend not only on the power and the color of the illuminant, but also on the color of the lighted object ( the spectral reflectance of the surface ), so, if we choose the optimum matching illuminant for the lighted object in lighting design, we can get excellence and energy efficiency result
摘要：泛光照明中，被照體的亮度大小、顏色變化等視覺效果不但與電光源的功率和光色有關，而且還與物體色（即光譜反射比）等有關，所以在進行照明設計時，應選擇光源色和物體色相匹配的光源，這樣才有可能使泛光照明效果較好，而且達到照明節能的目的。As a new technology and new mode in the next generation rear projection tv and hdtv, reflective lcd is the best way to realize bright light output and high contrast ratio image. in the forth chapter, the physical characteristics and electronic - optics behavior are studied, as well as the working principle and properties of lcds. following the continuum theory, the detail formulas for calculating the director alignment of perpendicular alignment and twist nematic lcds are given
高亮度、高解析度、高對比度以及體積小、重量輕、色彩豐富、圖像逼真始終是投影顯示技術的發展方向，在本部分，從亮度、解析度、重量和晶元闡述了投影機的技術發展趨勢，得出結論：反射式液晶投影顯示是實現高解析度高亮度投影顯示的最佳方案，也是新一代背投電視尤其是背投hdtv的最佳方案。The sols is bright yellow and stable during a month and a half. silver sols are charaterized by a transmission electron microscopy ( tem ) and ultraviolet - visible spectrophotometer ( uv ). the result indicates that the silver particles are approximately spherical and monodispersed with an average diameter of ca. 15nm
溶膠呈亮黃色，貯存一個半月不發生凝聚，並用紫外分光光度計和透射電子顯微鏡對其研究，發現制得的納米ag為球狀粒子，粒徑為15nm 。Pulsar radio emission is markedly different from other astrophysical radio sources, characterised by extremely high brightness temperature and high degree of linear or circular polarization. the high brightness temperature of the pulsar radio emission implies that the underlying emission mechanism must be coherent. so far there is no widely accepted model for the radio emission. this paper discusses recent developments in studies of the production and propagation of pulsar radio emission
脈沖星的射電輻射與其他天體物理輻射源有很大的不同，因為它們有著極高的亮溫度和高度的線或圓偏振.極高的亮溫度意味著起作用的發射機制一定是相干的.至今尚無對這種輻射普遍接受的模型.本文討論了關于脈沖星的射電輻射產生和傳播研究中的新進展Dg dp measurements of the electrical properties of transmitting tubes - methods of measuring the distortion in the chrominance signal due to the luminance differential gain and differential phase
發射管電性能測試方法由亮度信號不同引起的色度信號失真Refractors used with enclosed side - mounted luminaires for horizontal - burning high - intensity - discharge lamps, mechanical interchangeability of
水平發光高亮度放電燈用封閉側裝式照明裝置的折射器的機械互換性The combination of very large radio flux and exceedingly small angular size means that the sources have a fantastic surface brightness.
極大的射電流量同極小的角經集於一身，意味著這些發射源有難以置信的高表面亮度。Excitation at 493nm, the emission peaks of pff5 in chloroform solution is 540nm and 580nm. using pff5 as the emitter, an efficiency single layer led has been fabricated. 3
利用pff5作為發射層，研製單層高效的聚合物發光二極體，研究器件的伏安特性、電壓亮度特性和電致發光光譜。1 measurement items : luminance ( transmittance, grey scale inversion ), chromaticity, response time, flicker, eoc, gamma curve, view angle performance, spectrum, reflective luminance, reflective chromaticity, reflectivity, module optical performance with certain temperature range
1量測項目：亮度（穿透率，灰階反轉） ，色度，響應時間，閃爍度，光電特性曲線，圖像輝度曲線，視角特性，光譜曲線，反射亮度，反射色度，反射光譜，反射率，產品光學參數的溫度特性。分享友人