The synthetic light-blue coating used in Denmark for bicycle paths will cover the roof.

在丹麦用于自行车道的合成淡蓝色涂层覆盖屋顶。

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Another larger piece was this impressive chalcoalumite from bisbee-the light blue coating on azurite.

另一较大的标本是这个给人深刻印象的铜明矾--蓝铜矿上边覆盖一层浅蓝色。

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These can be made to emit white light by coating the device with a phosphor compound that absorbs part of the blue light and re-emits it as yellow.

只要为发光装置加上磷化合物涂层，吸收蓝光，重新发出的光线即呈黄色。

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Each disc is covered in a transparent plastic coating (either blue, green, yellow or red) which lets daylight filter through.

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Generally LED bulbs use either a combination red, green and blue LEDs to create white light, or they use a phosphor coating (more common) in combination with a blue LED.

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These can be made to emit white light by coating the device with a phosphor compound that absorbs part of the blue light and re-emits it as yellow.

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