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。
A mathematical model was established to simulate the light-off performance of a catalytic converter. Simulation results and the experimental values are agreed well.
建立数学模型对催化转化器起燃温度特性曲线进行模拟，模拟结果与实验测量结果吻合较好。
The basic functions such as light-off-time, electromotive force output, response time and oscillograph trace under four different frequencies are obtained and analysed.
得到并分析了传感器的升温激活时间、响应性能和电动势输出以及在不同波动频率下的波形图。
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。
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。
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。
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。
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。
Very rarely will an Englishman try to anticipate the green light by moving off prematurely.
很少有英国人会试图提前离开，以预测绿灯的到来。
She reached over and flipped off the light.
她伸过手去关掉了灯。
He was convicted of assaulting a police officer but he got off with a light sentence.
他被定了个殴打警察罪，然而却得到从轻判处。
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。
Basically the light bouncing off all these objects close to earth is brighter than what's coming from the stars.
大体上，所有靠近地球的这些物体所反射的光都比来自恒星的要亮。
However using light to find one's own way around requires vastly more energy, since the eyes have to detect the tiny fraction of the light that bounces off each part of the scene.
然而，利用光来找到自己的方向极大地需要更多的能量，因为眼睛必须检测从场景的每个部分反射的光的极小部分。
If the light flashed on and off several times, the dolphins were supposed to press the left-hand lever followed by the right-hand one.
如果灯亮了又灭了好几次，海豚就应该先按左手的杠杆，再按右手的杠杆。
Because of the way light reflects off the organisms, these phytoplankton create colourful patterns at the ocean surface.
由于光在这些浮游生物身上产生反射，它们在海洋表面形成了五颜六色的图案。
She had often carried test tubes containing radioactive isotopes in her pocket, remarking on the pretty blue-green light they gave off.
她经常把装有放射性同位素的试管放在口袋里，对试管里发出的漂亮的蓝绿光赞不绝口。
Turn off the light, Frank. It saves electricity.
把灯关了，弗兰克。这样可以省电。
Kate, don't forget to turn off the light when you leave the room.
凯特，你离开房间时别忘了关灯。
On the edge of the jacket, there is a piece of cloth that gives off light in the dark.
夹克边缘的一块布料可以在黑暗时发光。
These lights should give off as little blue light as possible.
这些灯应该尽量避免发出蓝光。
Many of the electronic devices we use every day, like our phones and computer screens, give off blue light.
我们每天使用的许多电子设备，比如手机和电脑屏幕，都会发出蓝光。
Living in a glare of our making, we have cut ourselves off from the light of the stars.
我们生活在自己制造的强光下，却把自己与星光隔开。
The light is on. When you leave, please turn it off.
灯亮着。当你离开时，请把它关掉。
I shook my shyness off and my body felt as light as a feather.
我摆脱了羞涩，感觉身体轻如鸿毛。
The technology, Strano said, could one day be used to light the rooms or even to turn trees into self-powered street lamps. In the future, the team hopes to develop a version of the technology that can be sprayed onto plant leaves in a one-off treatment that would last the plant's lifetime.
斯特拉诺表示，该技术将来可能用于房间照明，甚至可以将树木改造为自供电路灯。该团队希望未来可以开发此技术的新形式，用于喷洒植物叶片，一次操作，终生有效。
Turn the light off as you go out.; Please switch off the lights when you leave.
出门时请随手关灯。
Turn your reading light off when taking off or landing at night. Your eyes will be more adjusted to the dark if you have to leave the plane in a hurry.
如果你不得不匆忙地离开飞机，在晚上起飞或着陆时关掉你的阅读灯，这会使你的眼睛更适应黑暗。
Turn your reading light off when taking off or landing at night. Your eyes will be more adjusted to the dark if you have to leave the plane in a hurry.
如果你不得不匆忙地离开飞机，在晚上起飞或着陆时关掉你的阅读灯，这会使你的眼睛更适应黑暗。
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