Using a mirror, check your head for hair loss.

照一下镜子，看下你的头上有没有掉头发。

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Using a mirror, you can divert light from its path.

用镜子可以使光折射。

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Using a zone plate instead of a mirror gets around this.

用波带片代替镜面在轨道运行。

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Using a zone plate instead of a mirror gets around this.

用波带片代替镜面在轨道运行。

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