Then a further improved structure based on LED and fly-eye lens was presented.

而后，在此基础上有提出了基于LED和复眼透镜结构的进一步改进方案。

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Then a further improved structure based on LED and fly-eye lens was presented.

而后，在此基础上有提出了基于LED和复眼透镜结构的进一步改进方案。

youdao