Therefore, light rays emitted by the luminous source of the handheld electronic device can be uniformly transmitted from the keys.

由此，该手持电子装置的发光源所发出的光线能够均匀地从按键透射出。

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In addition to viewing the sun's luminous outer atmosphere (corona), which under normal circumstances is lost in the glare of the rays, they will be using the eclipse to calculate the star's current diameter, which changes as the sun expends energy.

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