The incandescent lamp was introduced into people's life through its first display in a World's Fair.

白炽灯是通过世博会的展示才被普及使用的。

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The incandescent lamp was introduced into people's life through its first display in a

白炽灯是通过世博会的展示才被普及使用的。

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They are dimmable, create light in all directions, and display virtually the same warmth and range of colors as incandescent bulbs.

LED灯泡可以调节亮度，会朝各个方向发光，所发光线的色温和光谱与白炽灯几乎一样。

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They used incandescent lamps to display stats, the same technology Daktronics relied on for the next 25 years, through an exclusive contract to provide the scoreboards for the 1980 Winter Olympics in Lake Placid, New York, large displays for Caesars Palace in Las Vegas and an electronic voting system for the U.N.

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