有五种宝石供选择，分别是蓝色托帕石、不纯蛋白石、缟玛瑙、蓝宝石和红宝石。

There are five options for the gemstone: blue topaz, opalite, onyx, sapphire and ruby.

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这张著名的“蓝色大理石”照片是地球全景的第一张照片。

This famous \"Blue Marble\" shot represents the first photograph in which Earth is in full view.

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现有的白色二极管同样基于蓝色的光——源于这种颜色的光是用于激发一种由钇铝石榴石组成的磷光层。

Existing white LEDs are also based on blue ones, the light from which is used to excite a phosphor layer made of yttrium aluminium garnet (YAG).

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