Cavities with mirrors spaced specifically to amplify red, blue and green light are grouped in bunches of three, each of which corresponds to a single dot, or pixel, on the display.
为增强红蓝绿光，镜子会隔成特定间距，其空腔分为三束，每束相当于显示屏上的一个单点，或像素。
In digital imaging, graininess may occur as a result of printing an image, the pixel resolution of which is too coarse, or as a result of using a printer with poor dot resolution.
数码成像时，颗粒状可能会在图片打印时像素分辨率过于粗糙或使用点分辨率过低的打印机时出现。
Two unique techniques, spot shaping and pixel shifting, are adopted for improving sparkling and kinetic visual effects of dot matrix hologram in our experiments.
为了增强点阵光栅全息图的闪耀效果和获得奇妙的动态视觉效果，作者在实验中采用了两项特有的单元技术，即光斑整形和像元移位。
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