在很低的压力下，原子态氢的形成与越来越高的气体速度有关。
At very low pressures the formation of atomic hydrogen is linked with the increasing gas velocity.
数值计算表明，气体速度随入口段曲率半径的增大而增大，拉伐尔喷嘴和长度则随曲率半径的增大而减小。
The numerical calculation results show that the gas velocities increase with the reduction of curvature and the length of laval nozzle decreases with the increase of the radius of curvature.
产生这些巨大差别的原因是诸如反应器中的丝极温度、丝极基体距离、气体速度等所有其它参数，这些参数的范围很宽。
These large differences are caused by all the other parameters, such as filament temperature, filament substrate distance, gas speed in the reactor, etc., which can vary in wide ranges.
对不同入口气体速度、初始颗粒尺寸分布和不同颗粒团聚形成机理下收集器内颗粒聚团流动的流体动力特性进行数值模拟。
The hydrodynamics of particle agglomeration flow was numerically simulated at the different inlet gas velocity, initial particle size distribution and type of agglomeration mechanisms in the absorber.
在半理论分析的基础上 ，导出了散装填料层泛点气体速度的关联式 ，由实验数据计算了常用填料本文关联式的液泛填料因子。
The relation of pressure drop in the regular stacked packing bed is studied by means of the experiment data, and this relation is derived also.
模拟结果揭示了废塑料气力输送过程中废塑料颗粒速度、气体速度和颗粒体积分率沿管长的变化规律以及管径的改变对废塑料颗粒体积分率的分布和固气比的影响。
The results revealed the changing laws of the velocity of waste plastics particles and gas, the volume fraction of the waste plastics along the pipe range in the course of pneumatic conveying.
简单地说，如果气体分子达到逃逸速度，它就能从一颗行星上“蒸发”。
Simply stated, a gas molecule can "evaporate" from a planet if it reaches a speed known as the escape velocity.
此外，由于气体的分子运动依赖于温度，在木星行星的低温下，即使是最轻的气体也不可能获得逃逸所需的速度。
Also, because the molecular motion of a gas depends on temperature, at the low temperatures of the Jovian planets even the lightest gases are unlikely to acquire the speed needed to escape.
观测表明M87星系的气体云围绕星系中心旋转的速度异常快。
Observations indicate that gas clouds in galaxy M87 are whirling unusually fast about the galaxy's center.
现在，研究人员还不清楚色球层的等离子气体为何能达到如此高的速度，也不知道为什么到达日冕后会有如此高的温度。
The researchers do not yet know what launches the chromospheric plasma at such high speeds nor what heats it to the extreme temperatures it reaches in the corona.
在测试中，喷气设备可以60英里每小时的速度飞行30英里，通过一个气体引擎和两个管道风扇，可以上升到7,800英尺的高度。
In testing, the Jetpack could travel at 60 miles per hour for up to 30 miles, and as high as 7,800 feet using a gas engine and two ducted fans.
在测试中，喷气设备可以60英里每小时的速度飞行30英里，通过一个气体引擎和两个管道风扇，可以上升到7,800英尺的高度。
In testing, the Jetpack could travel at 60 miles per hour for up to 30 miles, and as high as 7, 800 feet using a gas engine and two ducted fans.
垃圾填埋厂释放的大半气体都是甲烷，它使地球变暖的速度是二氧化碳的20倍。
More than half of the landfill gas is methane, which warms the planet 20 times faster than carbon dioxide.
利用智利的天文望远镜，天文学家测量了三裂星云中气体的多普勒频移和速度。
By using telescopes in Chile, the astronomers measured Doppler shifts and thus velocities of gas in the Trifid.
由于类似空气阻力的牵引作用，这些气体的（运行）速度减缓。
The gas was slowed by a drag force similar to air resistance.
这代表着大气的变暖，会比人们根据温室气体浓度水平去推想的速度要慢。
This means that the atmosphere will warm more slowly than a given level of greenhouse gas would lead you to expect.
这个星系在红外线区域很明亮，富含气体和尘埃，这些都显示出恒星正以飞快的速度形成。
NGC 6946 is bright in infrared light and rich in gas and dust, exhibiting a furious rate of star formation.
就是我们主要通过燃烧矿物燃料，忙着以每年三百亿吨的速度排入空气的那种气体。
The very gas we are busy pumping into the air at the rate of 30bn tonnes a year, mostly by burning fossil fuels.
衣服在巨大的气体干燥器里面以每分钟75负荷的速度滚动着，而高高地安装在墙上的一台小电视里，杰拉尔多发出嘟嘟声。
Clothes tumbled in huge gas dryers for seventy-five cents per load while the Geraldo show blared on small televisions mounted high on the walls.
表面重力，这个气体巨人的大气层的气压水平限制在一巴范围，是地球的百分之90的并且需要达到的低轨道的速度是所有的气体行星的最低水平。
The surface gravity, which is defined from the 1 bar pressure level in a gas giant's atmosphere, is 90 percent that of Earth's and the speed needed to reach low orbit is lowest of all the gas planets.
重重障碍减缓了它们的速度，使它们能够以组成新一代恒星和行星的材料充实孕育恒星的气体云。
These impediments slow their speed, so they can enrich star-forming gas clouds with the ingredients for new generations of stars and planets.
而速度快得可以成为“气体巨人”的行星会消耗他们周围所有的气体，以此减缓他们迁移的速度使其得以存活。
Planets that grow fast enough to become gas giants eat up all the gas around them, slowing their migration speeds and giving them a chance to survive.
每天，腐烂中的垃圾都释放出大量对气候有害的混合气体，其中超过一半均为与二氧化碳相比能使气候变暖速度加快20倍的沼气。
Everyday, the decaying trash releases large quantities of a climate-harming gas cocktail.More than half of the landfill gas is methane, which warms the planet 20 times faster than carbon dioxide.
之后他们压缩减压能产生声波的这种气体。数据表示部分冷凝物的速度超过声速，因此他们制出了声音的黑洞边界。
Their data showed that the speed of part of the condensate exceeded the speed of sound, and they had therefore made an acoustic event horizon.
由于磁化空腔的效能慢慢降低，那么那些速度还很快的原子就很容易逸出，而其余的气体粒子在不断的碰撞中消耗能量，使得温度降低。
As the height of the magnetic barrier is slowly lowered, the fastest atoms leave the bottle and the remaining gas rethermalizes via elastic atomic collisions at lower and lower temperatures.
每天腐烂的垃圾释放出大量的对气候有害的混合气体，而多半都是甲烷，它使地球变暖的速度是二氧化碳的20倍。
Everyday, the decaying trash releases large quantities of a climate-harming gas cocktail. More than half of the landfill gas is methane, which warms the planet 20 times faster than carbon dioxide.
每天腐烂的垃圾释放出大量的对气候有害的混合气体，而多半都是甲烷，它使地球变暖的速度是二氧化碳的20倍。
Everyday, the decaying trash releases large quantities of a climate-harming gas cocktail. More than half of the landfill gas is methane, which warms the planet 20 times faster than carbon dioxide.
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