在电脑屏幕上阅读时可将文本调成暗色，字体变成白色，黑色背景白色字体更适宜眼睛。
Your eyes can more easily read white words on a dark background.
基于北京城市性质定位为宜居城市这一背景，提出居住适宜性评价的必要性与紧迫性。
In the context of building Beijing into an amenity city, it points out the necessity and urgency of evaluating its urban residential suitability.
以工业安全生产数字化平台为研究背景，分析了几种交流采样算法，并根据实时性和精度要求选用适宜的算法；
Several algorithms for AC sampling are analyzed and the appropriate one is used in the digitization platform for industrial production.
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