light-off

基本解释

The light-off performance of automotive catalytic converters is very important for the stringent vehicle emission regulation.
车用催化转化器的起燃特性对满足日益严格的排放法规是至关重要的。
The effects of converter position, ignition timing and idle speed on catalytic converter light-off behavior were studied on an electronically controlled LPG injection engine.
研究了电控LPG发动机的催化转化器安装位置、点火提前角和怠速转速对催化转化器快速起燃的影响。
Experimental results show that the position of the converter nearer to the exhaust port, the retard ignition timing and the higher idle speed can promote the catalytic converter light-off.
试验结果表明，催化转化器的位置距排气口近可提高排气温度，大大提高催化转化器的转化效率；推迟点火提前角和提高怠速转速均有利于使催化转化器进入快速起燃状态。

They used light-sensitive molecules to turn on and off nerve cells in the deep brain structure of mice.
They were not hot enough -- like stars-- to give off light.

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These slightly deeper quartz grooves result in light-wave phases that are slightly off-kilter from the light waves that pass through shallower grooves.
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起燃
Experimental results show that secondary air injection can shorten the light-off time of three-way catalytic converter, and effectively reduce the emissions of HC and CO during cold start.
试验表明二次空气可以缩短催化器起燃时间,有效地降低冷起动过程中HC和CO排放。
能源科学技术
着火