现在，如果我们只把这张照片设为背景，那么本文便会无法辨读，而且我们也会破换配色方案。

Now, if we just made this image our background, the text would become unreadable and we would be ditching our color scheme.

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本文关于强迫风冷中板翅式和叉排式散热器换热性能和流动特性的研究即以这一重要领域为背景。

Under this background, the present study of the heat transfer and flow characteristics of plate fin heat sinks and staggered heat sinks with forced air -cooling were carried out.

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