The optical methods of pseudocolor encoding of black and white picture based on density encoding some colour have been presented, but all methods required encoding process.
将黑白图象用光学手段按其密度编成各种颜色的方法，已有些报道，但均需编码过程。
The display has been incorporated with a low_reflectance black matrix and optical compensation films for high_quality performance.
为了使性能更好，器件还采用了低反射率黑矩阵和光学补偿膜。
The abnormal block and black round structure of 50 axletree steel was studied and analyzed using optical microscopy, transmission electron microscopy, electron probe and so on.
用光学显微镜、透射电子显微镜以及电子探针等现代材料试验手段对50钢中存在的大块黑色团状异常组织进行了研究和分析。
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