light-off

基本解釋

The light-off performance of automotive catalytic converters is very important for the stringent vehicle emission regulation.
車用催化轉化器的起燃特性對滿足日益嚴格的排放法規(guī)是至關重要的。
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.
研究了電控LPG發(fā)動機的催化轉化器安裝位置、點火提前角和怠速轉速對催化轉化器快速起燃的影響。
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.
試驗結果表明，催化轉化器的位置距排氣口近可提高排氣溫度，大大提高催化轉化器的轉化效率；推遲點火提前角和提高怠速轉速均有利于使催化轉化器進入快速起燃狀態(tài)。

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.
試驗表明二次空氣可以縮短催化器起燃時間,有效地降低冷起動過程中HC和CO排放。
能源科學技術
著火