稀薄的

Numerical methods based on the continuum hypothesis and molecule kinetic theory are performed to investigate the gaseous flow in the microchannels. The validity of different boundary conditions based on continuum model is examined by DSMC method under different Knudsen number. It is found that the impact of rarefied and compressibility effects are different.

针对微槽道中气体流动的特征，分别采用连续介质模型和分子运动模型简要分析了连续介质模型中不同滑移边界条件的适用范围，并总结出稀薄效应对槽道中压力的的影响和可压缩效应的作用趋势是相反的。

The true enemies of science, argues Paul Ehrlich of Stanford University, a pioneer of environmental studies, are those who question the evidence supporting global warming, the depletion of the ozone layer and other consequences of industrial growth.

斯坦福大学的保罗·埃利希是环境研究的先驱者，他认为，科学的真正的敌人是那些对工业增长带来的全球变暖、臭氧层稀薄及其他后果的证据提出质疑的人。

True enemies of science, argues Paul Ehrlich of Stanford University, a pioneer of environmental studies, are those The who question the evidence supporting global warming, the depletion of the ozone layer and other consequences of industrial growth.

作为环境研究的先驱者，斯坦福大学的保罗埃利希认为，科学的真正的敌人是那些对全球变暖，臭氧层稀薄和工业增长带来的其他后果的证据提出质疑的人。

This fluidity exceeds even the inconsistency of the sands of the Quartier Saint-Georges, which could only be conquered by a stone construction on a concrete foundation, and the clayey strata, infected with gas, of the Quartier des Martyrs, which are so liquid that the only way in which a passage was effected under the gallery des Martyrs was by means of a cast-iron pipe.

这种流动性的土壤较之圣乔治区的流沙还更不牢靠，流沙只在石块加混凝土筑成地基后才能加以克服；而流动性的土壤也不比殉教者区恶臭的有沼气的粘土层牢靠，这粘土稀薄到使殉教者区地下长廊的沟道只能用一条铸铁管来沟通。

There are mornings when King Fog masses his molecules of carbon in serried squadrons in the city, while he scatters them tenuously in the suburbs; so that your morning train may bear you from twilight to darkness.

有许多个早晨，"王的雾"（应该翻译成"雾之王"比较妥当，联想到《王的男人》，搞笑一下）会在把城市中密集成群的他的二氧化碳分子聚集起来的同时，在郊区将它们稀薄地驱散开来；因此，也许早上的火车会把你从黎明带向黑暗。

This is an intoxicating world of art, skillful watercolor techniques attractive - pleasing colors are transparent; moisture control, with plenty of clever arrangements between deliberately and arbitrarily; color thin, thick, stacked, woven generate the rhythm of sound choir; Dianran hook brush pen, compact quasi-steady, vacuousness of Health to produce a very strong expression; images a sense of sunlight, air and create a sense of even more skill.

这是一个醉人的艺术世界，娴熟的水彩画技巧引人入勝――颜色透明得令人愉悦；水份的控制，留白的巧妙，安排在着意与随意之间；色屋的稀薄、浓重，相叠、交织产生音诗班的节奏；用笔点染勾擦、精巧準稳、虚实相生，产生很强的表现力；画面阳光感、空气感的营造更显功力。

For Indian soldiers coming from the hot, verdant plains and valleys , their normal world, this Antarctic scene with its thin, unsustaining air was a strange and frightening thing, made more so by the fact that very few of their officers had ever had experience of either.

对于习惯气候炎热、绿色的平原和谷地的印度士兵来说，这里有如荒凉的南极，空气稀薄，使人呼吸困难，陌生得令人害怕；更加糟糕的是，就连他们的军官中熟悉这种环境的人也寥寥无几。

Based on the fundament of analyses of abroad and our country CNG engine technology, the developing strategy of CNG engine has suggested. Based on the EQD180-20 diesel which the basic construction unchanged, the necessary modified designing for CNG engine was made which included combustion system, intake and exhaust system, cylinder head, piston, and turbocharger.

在分析国内外天然气发动机技术的基础上，提出了满足国3排放的电控喷射单燃料CNG发动机开发方案；以EQD180-20柴油机为基础机型，在基本不改变原机结构的前提下，对燃烧系统、进排气系统、气缸盖、活塞和增压中冷系统进行相应的变型设计；采用稀薄燃烧、增压中冷、低涡流燃烧系统、电控分组点火、开环控制、电控CNG喷射系统和氧化型催化器等技术，降低排放，保持天然气发动机的动力性和经济性。

Namgyal Sherpa and his team of seasoned climbers, carrying empty rucksacks and special bags, will risk the zone's thin air and freezing temperatures to pick empty oxygen bottles, gas canisters, torn tents, ropes, and utensils lying between the South Col and the 8,850 meter (29,035 feet) summit.

此次，纳姆格亚尔·夏尔巴将带领经验丰富的登山队带着空帆布包和特制的袋子，前往位于珠峰南坳至8850米（29035英尺）峰顶间空气稀薄、气温极低的&死亡地带&，清理遗弃在这里的空氧气瓶、储气罐、废弃的帐篷、绳索和器皿等垃圾。

This patented technology has allowed the alloy material between the rotor and stator with the gap as small as possible, from the pump rotor design to reduce the angle of the thin dielectric transmission pump leakage at the time to ensure that no output pulse of the fluid medium.

这种具有专利技术的合金材料允许在转子和定子之间的配合间隙尽可能小，从转子泵设计技术的角度上减少了稀薄介质输送时的泵内泄漏，保证了无脉动的流体介质输出。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。