每个国家都必须有一个国王，他是大家关注的焦点。

Kingdom's must have a King which is really the focus here.

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因此，CVD金刚石的红外增透、抗氧化就成为大家关注的焦点。

So, how to improve the IR anti-reflection and anti-oxidation of CVD diamond has been of great interest.

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维持在整个屏幕上大家关注的焦点是另一种常见的问题短期罚球投影机。

Maintaining sharp focus across the entire screen is another common problem for short-throw projectors.

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