A fuel is a substance used to generate light, heat or energy.

燃料是一种用来产生光、热或能量的物质。

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In traditional light bulbs, a metal filament is used to generate light when electricity is run through the filament.

在传统的灯泡，金属丝是用来产生光在电费的灯丝。

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Only if the price of electricity were to triple would the amount of electricity used to generate light start to fall by 2030.

只有电价增至三倍，用于照明的总耗电量到2030年才会开始下降。

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kerosene is expensive, produce only dim light and generate polluting fumes that cause health and environmental problems.

VOA: standard.2009.12.13

The senses want for nothing, since "Day" and "Night" seem to generate light and sound and even scent.

WSJ: Gary Geipel: The Late Blooming of Odilon Redon

Thanks to this program, villages without any infrastructure throughout the world are being helped to generate light thanks to solar devices.

FORBES: Magazine Article

While a typical incandescent bulb uses 60 watts of power to generate light, the current state of LED technology can produce the same light for less than 10 watts.

FORBES: LEDs: Lighting The Way To Major Energy Savings