brightness ratio
英 [braɪtnəs ˈreɪʃiəʊ]
美 [ˈbraɪtnəs ˈreɪʃioʊ]
网络 亮度比; 明度比
双语例句
- The design of the convergent lens and the light-out part can enhance the brightness of the illuminating direction and increase the availability ratio of light.
通过聚光透镜及其出光部的设计，可以增强照明方向的亮度，提高光利用率。 - Results showed pulp brightness increased with the F/ C ratio rising, but ink residue and fiber strength appeared opposite tendencies.
研究结果表明，脱墨浆白度随着F/C比值的增加而提高；尘埃度和强度则得到相反的结果。 - Change the value of the level of brightness, depending on the lightness value representing the ratio of the total brightness of the.
明度值的高低变化，取决于明度数值占明度总量的比率而定。 - As a functional material or filling are need higher content brightness narrowly particle size distribution and radius-thickness ratio.
云母作为功能材料或填料都需要高纯度、细的粒度和窄的粒度分布、高白度和高径厚比。 - Brightness, signal-to-noise ratio, viewing angle and monochromaticity are the main quality index of a hologram.
本文指出全息图的主要质量指标为亮度，信噪比，观察视角和单色性。 - The effects of Eu, Mg, Ti, and Tb on luminescence properties were investigated in details. The results show that Eu, Mg, Ti, and Tb greatly influence initial brightness and persistence time of the phosphor, and Eu also influences red ratio.
研究了Eu，Mg，Ti，Tb的加入量对材料发光特性的影响，结果表明：Eu，Mg，Ti，Tb影响材料的初始亮度和发光时间，Eu决定材料的红色比。 - Light-blooming occurs when the brightness ratio between the bright and gray parts of video images is beyond the dynamic scope of image sensors.
当图像景物中明暗之处亮度之比大于图像传感器的动态范围时，就会产生晕光现象。 - According to RNA at A260/ 280 value ≥ 1.7, as well as formaldehyde denaturing gel electrophoresis, 28s, 18s rRNA bands clarity, brightness ratio near 2:1, to meet the requirements of miRNA chip experiments. 3.
根据RNA在A260/280值≥1.7，以及甲醛变性凝胶电泳28s、18SRRNA条带清晰，亮度比值接近2：1（见图9），满足miRNA芯片实验的要求。 - Theoretical analysis shown, it can based on the result of empty test and actual test, when changing the brightness of the image gray values to calculate the ratio of the optical transmission devices.
本研究就是基于这个背景应运而生的。通过理论分析，可以根据实测与空测时光斑图像亮度变化的灰度值比值来计算光学器件的透过率。