本文利用间断伽辽金法对自由空气爆炸进行了数值模拟。
In this paper, discontinuous Galerkin method (DGM) is used to numerically simulate spherical explosion in air.
有毒化学品有爆炸后进入空气的危险。
There is a risk that toxic chemicals might be blasted into the atmosphere.
当空气中甲烷浓度超过百分之五的时候就会爆炸。
It explodes at concentrations in the air of as little as 5 percent.
当地时间3点40分，福岛第一核电站一号反应堆发生爆炸，4名工人受伤，放射性物质已扩散进入空气中。
The explosion at the No.1 plant’s No.1 reactor about 3:40pm local time injured four workers and vented radioactive material into the air.
但最后，当我指出他不过是一个糟糕的语言习惯的时候，巨大的爆炸发生了，空气从四面八方冲进来，那令人厌恶的形状消失了。
But at the last, when I denounced Him as a bad linguistic habit, there was a vast explosion, the air rushed in from all sides, and the horrid shape vanished.
如果暴露在空气之中，可能会着火和爆炸，从而散发放射性微粒。
If left exposed to air, they may catch fire or explode, spreading radioactive particles into the air.
随着残骸和火焰的坠落，街上的汽车开始爆炸。空气中弥漫着烟尘和混凝土的气味——那种风镐敲碎路面时发出的气味。
As fire and debris fell, cars blew up; the air smelled of smoke and concrete, that smell that spits out of jackhammers chewing up pavement.
核爆炸会释放出高能量的光和热，破坏力巨大的压力波，而且四处飘散的放射性物质会污染数周围英里内的空气，水，和地表。
A nuclear blast is an explosion with intense light and heat, a damaging pressure wave, and widespread radioactive material that can contaminate the air, water, and ground surfaces for miles around.
'甲烷'。''和空气的爆炸混合物。
在可燃范围内的氢和空气的混合物可能爆炸，也可能燃烧，火焰是淡蓝色，几乎看不见。
Hydrogen and air mixtures, within the flammable range, can explode and may burn with a pale blue, almost invisible flame.
咳嗽释放的爆炸性空气的速度最高可达每小时60英里(96.56公里)。
A cough releases an explosive charge of air that moves at speeds up to 60 MPH.
他们正在检测高空空气以收集原子爆炸的证据。
They were monitoring the upper air to collect evidence of atomic explosions.
昨天早上，搜救人员就已经到达矿井下，但是由于空气质量越来越差，可能会导致新的爆炸，他们不得不出来…
Crews did start down into the mine yesterday morning, but they had to come back out because the air quality got worse and threatened a new blast.
如果这样做，空气中的氧会浓缩在液氢里，造成可能的爆炸危险。
If this is done, the oxygen in the air will condense in the liquid hydrogen, presenting a possible explosion hazard.
即将爆炸或着火的粉末粒子和空气的比率范围。
Range of the ratio of powder particles to air which the mixture will explode or ignite.
空气喷发成一个爆炸力的模糊球体。
爆炸之后，大楼里的空气充满了灰尘。
After the explosion, the air in the building was filled with dust.
完全采用压缩空气为能源，不使用电，绝无爆炸，起火等潜在的安全隐患。
Totally driven by compressed air, no need electric power at all, no need to worry about explosion, fire risk caused by electric sparks.
但这样做有些危险，因为一旦液化气泄漏，接触到空气，便能引发爆炸。
But this is dangerous because if the liquid gas escapes and reaches the air it can explode.
大多数反应物和产物在跟空气混合的时候是易燃的，并在很大范围上具有容易爆炸的性质(即有大的爆炸极限)，如表3所示。
Most of the reactants and products are flammable and have explosive properties over wide ranges when mixed with air, as shown in table 3.
能燃烧，蒸气与空气形成爆炸性混合物，爆炸极限7% - 73%(体积)。
Can burn, vapor and air to form an explosive mixture, the explosion limit of 7%-73% (volume).
介绍了对美国一座核电站。控制系统空气管路爆炸事故的原因分析和实验研究。
This paper presents an experimental investigation and analyses to the cause of the air line explosion at a nuclear plant.
研究水煤气与空气混合时煤气的爆炸极限与所含各组分浓度之间的关系；
The relationship between the gas explosive limits and concentrations was studied as air was mixed with water gas.
植物学是解决一些世界上最紧迫的问题：如何减少空气和水的污染，如何养活爆炸性增长的人口，如何节约能源，等等。
Botany is tackling some of the world's most pressing problems: how to reduce air and water pollution, how to feed an exploding human population, how to conserve energy, and so on.
摘要：露天爆破的危害有爆破地震效应、爆破个别飞石、爆破有毒气体、爆炸空气冲击波和噪声等危害。
Abstract: The open-air explosion hazards are seismic effect, blasting individual flying rocks, blasting toxic gases, explosive air shock wave and noise hazards.
相反，相对缓慢移动的水是用来爆炸空气过去的刀片。
Instead, relatively slow-moving water is used to blast air past its blades.
露天爆破的危害有爆破地震效应、爆破个别飞石、爆破有毒气体、爆炸空气冲击波和噪声等危害。
The open-air explosion hazards are seismic effect, blasting individual flying rocks, blasting toxic gases, explosive air shock wave and noise hazards.
完全采用压缩空气为能源，不使用电，绝无爆炸，起火等潜在的安全隐患。
Totally driven by compressed air, no electric power, no explosion, fire caused by electric sparks.
完全采用压缩空气为能源，不使用电，绝无爆炸，起火等潜在的安全隐患。
Totally driven by compressed air, no electric power, no explosion, fire caused by electric sparks.
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