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。
You should be able to identify the major parts of a boiler and its functions. Also, you will learn about safety precautions that must be observed during boiler light-off.
你需要能区分锅炉的主要构成部件以及相关功能，同时在锅炉起燃过程中了解相关安全预防措施也是必不可少的。
It may effectively reduce the HC emissions to use a catalyst with low light-off temperature, close-coupled catalyst, HC traps, second air injection and electrically heated catalyst.
采用如低起燃温度催化剂、密耦催化剂、HC捕集器、二次空气注入和电加热催化剂等在内的排气后处理技术，可以有效地减少污染物尤其是HC的排放。
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。
The exhaust gas temperatures rise and variation during EUIII test cycle and its impact on the light-off time, ceramic temperature, dynamic response behavior and emission results were studied.
试验研究了摩托车在EUIII测试循环工况下的排气温度变化，以及对于两种氧传感器起燃时间、陶瓷体温度变化、动态响应特性和排放的影响。
Light falls off exponentially with distance, so a planet that is, say, twice as close to the sun as Earth is would get much more than twice the solar energy.
随着离开太阳的距离增加，阳光强度呈指数级下降，因此一颗距离太阳比地球近一倍的行星所接受到的阳光远远不止地球所接受到强度的一倍。
Some very important discoveries have been made by this technology, especially you consider that some objects in space give off radio waves but don't emit any light.
运用这项技术后，已取得了一些非常重要的发现，尤其是考虑到太空中的一些物体会发出无线电波，但不会发出任何光。
That's because, as well as neutrinos, it can detect the light given off by luminous organisms and bacteria.
这是因为，在监测中微子的同时，它还能够监测到发光生物体和细菌发出的光亮。
The light it gives off can then be used to track the protein in living cells.
它发出来的光可以用来跟踪生物细胞中的这种蛋白质。
Wasp and fly wings are made from two compressed layers of transparent chitin, with light bouncing off both layers and mixing to produce color.
果蝇和黄蜂的翅膀其实是由两层压缩的透明甲壳质组成，每层甲壳质都能够在内部对光线进行折射，从而产生出各种色彩。
But both will have a solid understanding of what happens to light as it travels through the lenses and bounces off the mirrors.
但是两者都需要真正理解光线在透过镜头和从镜子里反射时发生了什么。
Tungsten light bulbs cast very yellow light. And any surface that light bounces off can add its color.
钨丝灯光明显偏黄，而且反射这种光线的表面也会呈现出相应的颜色。
Specular reflection: The light that reflects off objects with a shiny surface.
镜面反射：光线从有光亮平面的对象反射回来。
ON SWITCHING off the light after reading “War and Peace”, Edmund Wilson, an American critic, would find his bedroom magically “full of people”.
合上托尔斯泰的<战争与和平>,熄了灯,艾穆德·维尔甚这位美国批评家觉得卧室里仿佛“挤满了人”,心情迟迟无法平静.
When a child masters turning on and off a light switch, his brain has expended more energy than the most complicated computer that we have on earth.
一个孩子学会开灯关灯的时候，他的大脑消耗的能量超过地球上最复杂的电脑。
We saw the reflection of our car's light off the reflector on his bike and stopped.
我们看到汽车灯光在他自行车上的反射光，就停下来。
Rather it mists, it dribbles, it hangs overhead, bathing the harbor in a clear gray light, running off umbrellas in tiny little droplets.
这儿不是起雾，而是“滴雾”，雾气在你的头顶上悬浮着，使整座海港都沐浴在一片灰蒙蒙的光线中，“雾滴”以细小水滴的形式从雨伞上滑落下来。
There is another class of lasers, however, that pulse, oscillating between an "on" stage, where light is produced, and an "off" stage, when the amount of light is dramatically reduced.
脉冲激光器是另一类的激光器，它的脉冲是在“开”与“关”两种状态的振荡之间产生。当激光器处于“开”的状态，产生光，在“关”的状态，光量显著减少。
The light then bounces off the bottom mirror, and then bounces again off the underside of the top mirror.
这些光随后经底层镜子反射，又再次经顶层镜子底部反射。
When I got to my room, I switched on the light, took off my jacket, and drank some water straight from the tap.
进了房间，我打开灯，脱下夹克衫，对着水龙头直接喝了一些水。
"What's really novel is that this laser works in the opposite mode, where most of the time the light is on, but it turns off in very brief flashes, very brief dark pulses," said Wiener.
这种激光器的相反工作模式才是它真正的新奇之处，其中大部分时间光线是打开的，但它在很短的闪烁及非常短暂的暗脉冲里关闭。
He turned off their light and made sure their bedroom door was open exactly as wide as they wanted it.
他关掉她们的灯，确保她们卧室的门打开的幅度恰是她们想要的。
So, very crudely, the thing on the wall is the switch DNA, your finger is the regulator, and gene expression is the light turning on or turning off.
因此，大体上可以这么形容，在墙上的东西就是开关DNA，手指是调控器，基因表达就是打开灯或关闭灯。
She reached over and flipped off the light.
她伸过手去关掉了灯。
You don't need a light switch or a light bulb or an iPhone app to turn something on or off.
你不需要电灯开关、灯泡或苹果手机应用程序来打开或关闭某些东西。
Notice that the floor plan shows a light on the left that is turned on and a light on the right that is turned off.
注意到平面图中显示的左侧的一盏灯处于开启状态，而右侧的一盏灯处于关闭状态。
Notice that the floor plan shows a light on the left that is turned on and a light on the right that is turned off.
注意到平面图中显示的左侧的一盏灯处于开启状态，而右侧的一盏灯处于关闭状态。
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