screen ratio 中文意思是什麼

screen ratio 解釋
遮擋率
  • screen : n 1 屏風；圍屏；屏幕；簾；幔；帳（等）。2 矮墻，隔板。3 熒光屏；【電學】屏蔽；【物理學】柵，網，...
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. In this paper, based on the study of vga graphic displaying theory and the theory of synchronizing display between led large - screen display system and crt image, a method, bit plane addressing method which has good effect -. high ratio of performance to price and can be implemented easily in circuits is discussed. and the principle and the implementation of the multi - gray led display system with programmable logic devices cpld and fpga are analyzed in detail

    本文在分析vga圖象顯示原理和led大屏幕與crt視頻圖像同步顯示原理的基礎上，論述了一種顯示效果較好、性能價格比高、電路上易於實現的方法? ?位平面尋址法實現多灰度圖象，並詳細分析了應用復雜可編程邏輯器件cpld和在線可編程邏輯器件fpga實現多灰度彩色led大屏幕圖像顯示的原理及電路實現。
  2. The optimum conditions for air electrode preparation were shown as follow : 20 % ptfe and 20 % mno2 in active layer, thickness of active layer 0. 15 - 0. 25mm and the ratio of active carbon to ethine black 4 : 1 ; 60 % ptfe in the gas diffusion and waterproof layer, employing na2so4 as pore - making agents, thickness 0. 35 - 0. 45mm, colding forming and layer sequence catlytic layer / gas diffusion and waterproof layer / current collector layout ; employing 40 meshed nickel screen as current collector and thermal treatment temperature over 200

    確定了制備空氣電極的優化工藝條件，催化層中ptfe含量約20 ， mno _ 2的最佳含量約為20 ，催化層中活性炭和乙炔黑的比例為4 ： 1 （質量比） ，厚度在0 . 15 - 0 . 25mm之間。防水透氣層中ptfe的含量約為60 ，以無水硫酸鈉作為造孔劑，厚度一般為0 . 35 - 0 . 45mm 。電極各層採用催化層/防水透氣層/集流體的排布方式，冷壓成型，熱處理對空氣電極的性能影響較大，熱處理溫度不低於200 。
  3. 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 。
  4. This article introduces the principle, interface and performance parameters of the led display driver module ; puts up a method of screen division and grayscale display ; picks - up some parameters to decribe the scan algorithm ; clarifies the relationship between scan parameters, the design ratio of the screen and the driver module performance parameters ; and formulates three principles in led display design

    摘要介紹了led顯示屏驅動控制模塊的原理、介面和性能參數，提出顯示屏的屏體分塊方法和灰度顯示方法，提取了用於顯示屏設計中驅動控制方式的若干演算法參數，分析並闡明了這些演算法參數、顯示屏設計要求及驅動模塊的性能指標三者之間的關系，並提出了三個設計約束關系式，從而擬定了顯示屏的驅動控制方式。
  5. 2. in order to meet the real - time simulation and guarantee specified ratio of precision, this paper had simplified and supposed some thermal process in module and use the lumped parameter way to model. for some special components, such as furnace cavity or water screen, had been reached good ratio of precision of simulation by divided into three parts ( upper area, intermediate area and lower area ) to model separately because of the huge difference of heat loading in vertical direction

    2 、為滿足實時模擬的要求而同時要保證有一定模擬精度，本文對模型做出了一定的假設和簡化，並且主要採用集總參數法進行建模，對於一些特殊部件，比如爐膛和水冷壁，由於其豎直方向熱負荷差異較大，本文將其分為上、中、下三個區域，分別採用集總參數建模，達到比較好的模擬精度。
  6. The fzlq fully automatic sewage filtering device adopts the following method to increase its filtering reliability : 1 ) increasing filtering area to reduce hydraulic losses ; 2 ) reducing the ratio of cleared filtering screen area to working filtering screen area to enhance the reliability of operating filtering device ; and 3 ) using rational flow channel and flow direction to clear the filtering screen

    國產fzlq型全自動清污濾水器，用增大過濾面積來降低過流水力損失；用減小被清洗的濾網面積與工作濾網面積的比例來提高在線運行的濾水器的穩定性；採用合理的流道及水流方向清洗濾網，提高過濾的可靠性。
  7. As for the ratio of the compression, this algorithm is proved more efficient than the other algorithms in the compression of screen image. a software scheme of the object - code of windows is designed for the compression of inter - frame

    通過多幅典型計算機屏幕圖像的壓縮率比較，其結果表明在計算機屏幕圖像壓縮方面，該演算法比其它幾種常見壓縮演算法（如jpeg等）性能更優。
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