Color appearance model (CAM) is mainly used to solve color-reproduction problems under different view conditions, backgrounds and environment.

色貌模型(CAM)主要解决不同观察条件、不同背景和不同环境下的颜色真实再现问题。

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It is introduced from the natural environment, socio-economic background and cultural backgrounds.

本文分别从自然环境、社会经济背景和文化背景介绍了景区概况。

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For college freshmen, entering the University of entering a relatively unfamiliar educational environment, the educational backgrounds and their previous living environment is very different.

对于大学新生而言，进入大学就进入了一个相对陌生的教育环境，这个教育背景与他们以前所生活的环境有很大的不同。

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However, he says, they do suggest that small changes in a situation or environment cause people of varying backgrounds to express their instincts and values in different ways.

CNN: Are rich people more unethical?