过早点燃的燃料的爆炸或内燃机中未燃的废气的爆炸。
An explosion of prematurely ignited fuel or of unburned exhaust gases in an internal-combustion engine.
回火：过早点燃的燃料的爆炸或内燃机中未燃的废气的爆炸。
Backfire: an explosion of prematurely ignited fuel or of unburned exhaust gases in an internal-combustion engine.
这一平凡的壮举刺痛了每一个人的眼睛，也点燃了每一个人内心未燃的火种。
This extraordinary feat of every person's eyes, but also ignited the fire in the heart of each person.
这时丢卡利翁和皮拉走进了一个溅满了泥浆的神庙里，在香火未燃的祭坛前，他俩俯身在地祈求神祗的指引和帮助。
Then Deucalion and Pyrrha, entering a temple defaced with slime, approached the enkindled altar and, falling prostrate, prayed for guidance and aid.
这些反应增加了不完全燃烧的可能性，更有可能释放未燃尽和光化学活性碳氢化合物到大气中。
These reactions increase the probability of incomplete combustion and are more likely to release uncombusted and photochemically active hydrocarbon compounds into the atmosphere.
火灾保护基本的两个方式就是(1)防患于未燃(2)有效的消防管理。
Two basic approaches to fire protection are (1) to prevent fire ignition and (2) to manage fire effects.
再过一小会儿，蜡烛的火焰就会忽明忽暗地跳动，最后完全熄灭——中间仍有一英寸未燃尽。
In a few moments the flame would flutter and go out - with still an inch of candle unburnt.
从分析煤粉的燃烧过程和未燃尽煤粉的来源出发，采用煤岩学方法研究了煤粉的燃烧特性。
Through analyzing the combustion process of pulverized coal(PC) and source of unburned PC, the combustion characteristics of PC is studied by means of coal petrography.
碳氢化合物(HC)像一氧化碳一样，为未燃尽的和被浪费掉的燃料。
Hydrocarbons (HC), like carbon monoxide, represent unburned and wasted fuel.
采用浮选法可除掉粉煤灰中部分未燃尽炭，在降低了含炭量后，粉煤灰的质量得到很大提高。
Through removing partial unburnt carbon in fly ash by flotation, the quality of fly ash can be improved.
柴油机在起动后的暖机过程中排出大量含有未燃碳氢(HC)的蓝烟，给人类健康和社会环境都带来极大的危害。
When direct injection diesel engines are warmed up after running from cold start, they will emit a lot of blue smoke containing unburned hydrocarbons (HC) which are harmful to people and environment.
此感应器监视着在燃烧中未燃氧气的数量，当发动机里的燃料过多或过少，感应器会发送数据给汽车上的电脑。
The sensors monitor the amount of unburned oxygen in the exhaust and tells the car's computer when there is either too much or not enough fuel in the engine.
详细阐述了火花点火式发动机气缸内未燃碳氢排放的主要生成源和形成机理，并测量了不同运转参数下火花点火式发动机的碳氢排放。
In this study, in-cylinder Unburned HC formation mechanism and its major sources in si engine are clarified in detail and HC emission under different operating parameters are measured.
基于火焰传播过程建立了火花点火发动机顶环岸间隙处未燃碳氢生成和释放过程的数学模型，并利用模型进行了顶环岸间隙处未燃碳氢生成过程的数值模拟计算。
In this paper, based on flame propagation a mathematical model of formation and desorption of unburned hydrocarbon in top-land crevice of spark ignition engines has been established.
实验结果表明，用DSC法可较准确地预示未固化推进剂的燃速，并成功预示了某配方的基础燃速。
The results of tests show that the burning rates of uncured propellants can be predicated exactly with DSC method and the base burning rate of some formulation is predicated successfully.
结果表明，采用这种生物添加剂可以改善汽油机的性能，表现在不仅减少了燃油消耗量，也减少CO和未燃HC的排放。车辆道路试验发现，对在城市工况下运行的车辆节油效果更为突出。
This kind of biologic gasoline additive can improve the engine performance, for example it reduces the fuel consumption and the emissions of CO and unburned HC.
论述了其应用，提出一种通过未燃烬物的粒度分析，测求燃料在锅炉炉膛内燃烧后机械未燃烬损失的新方法。
The application of such a distribution is discussed and a new method is presented to calculate the unburned carbon loss after the combustion of coal in a boiler furnace through the...
炉箅解决未 燃尽柴草堵塞出灰口的问题。
The furnace grate solves the problem that the uncombusted firewood can block the ash outlet.
研究结果表明，壁面催化重整反应可以缩短乳化油着火延迟，保证高掺水率下的平稳运行，同时能使NO、碳烟和未燃燃料蒸气均得以下降。
The numerical results show that the wall catalytic reform reaction can reduce the delay of ignition of emulsified fuel and assure the stable running under high content of water.
研究结果表明，壁面催化重整反应可以缩短乳化油着火延迟，保证高掺水率下的平稳运行，同时能使NO、碳烟和未燃燃料蒸气均得以下降。
The numerical results show that the wall catalytic reform reaction can reduce the delay of ignition of emulsified fuel and assure the stable running under high content of water.
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