black and white picture

基本解释

Net boundless sea where have you traces of black and white picture sad waiting for you.
网海茫茫无际哪里有你踪迹，黑白的头像伤心的等你。
Walking around Chikan feels like walking through an old black and white picture postcard.
行走在赤坎小镇，仿佛置身于古老的黑白照片中。
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。

No photos exist of John, save for a black and white picture taken when he was a boy (above).
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It is a black-and-white silent picture.
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