查询词典 gases

For the study of Brownian motion established kinetic theory of gases played an important role in the process of .1827, Brown observed that pollen suspended in water such as the random motion of material particles .1877 year, Delta claims that the particles The irregular movement of liquid molecules to its collision-induced .1905 imbalance and later years, Einstein, Langevin Smolukhovski, and they were published on the theory of Brownian motion .1908 year, Perrin Experimental observation of the system, confirmed the correctness of the theory.

对于布朗运动的研究在气体动理论建立的过程中起过重要作用。1827年，布朗观察到悬浮在水中的花粉等物质微粒的无规则运动。1877年，德耳索指出，微粒的不规则运动是液体分子对它的不平衡碰撞引起的。1905年及稍后，爱因斯坦、斯莫卢霍夫斯基和朗之万分别发表了他们关于布朗运动的理论。1908年，佩兰的系统实验观察，证实了上述理论的正确性。

From the point of kinetic theory of gases, these paper analyzed parameter characteristics of vacuum cavity model on vacuum survey of all-glass evacuated solar collector tubes, and suggests emphatically relationships between vacuum and molecular velocity, thermal conductivity and other parameters.

从气体动理论出发，分析了太阳真空集热管真空度测量的负压腔模型的动态特性，并重点讨论了分子速度、导率等参数与真空度测量之间的内在联系。

From the point of kinetic theory of gases, these paper analyzed parameter characteristics of vacuum cavity model on vacuum survey of all-glass evacuated solar collector tubes , and suggests emphatically relationships between vacuum and molecular velocity, thermal conductivity and other parameters.

从气体动理论出发，分析了太阳真空集热管真空度测量的负压腔模型的动态特性，并重点讨论了分子速度、热导率等参数与真空度测量之间的内在联系。

Based on the hydrodynamic theory of dense gas-solid flow and the kinetic theory of dense gases proposed by Chapman and Cowling, the kinetic theory of cohesive particles flow and constitutive equations of cohesive particles are established.

目前科学家们对粘附性颗粒的流态化研究主要集中于实验研究，数值模拟研究做的比较少，特别是对传统的双流体模型，如何进一步改进完善，以适应粘附性颗粒的气固两相流动的研究，成为当务之急。

British astronomer, physicist, and mathematician noted for his workon the kinetic theory of gases and his investigations into therelationships between mathematical concepts and the naturalworld.

8楼 詹姆斯，詹姆斯·霍普伍德1877－1946英国天文学家、物理学家和数学家。以气体动力学的研究和探索数学同自然界之间的关系著称

The idea that molecule s of a fluid are constantly in motion is a key part of the kinetic theory of gases, developed by James Clerk Maxwell, Ludwig Boltzmann, and Rudolf Clausius (1822-1888) to explain heat phenomena.

这个观念是马克士威、波兹曼和克劳修斯(Rudolf Clausius，1822～1888)在阐明热现象时所提出的气体分子运动论的主要概念。

After a century, the kinetic theory of gases was also won the rapid development of .1857, the Clausius for the first time clearly statistical concepts, derived gas pressure, volume and temperature inter-correct relations, but also in 1858 introduced the concept of .1859 free path of molecular motion, the Maxwell velocity distribution law is derived, established the mathematical theory of transport processes .1868, the Boltzmann velocity distribution law was introduced in the gravitational field .

此后一个世纪，气体动理论才又获得飞跃发展。1857年，克劳修斯第一次清楚地说明统计概念，导出了气体压力、体积和温度间的正确关系，还于1858年引入分子运动自由程概念。1859年，麦克斯韦导出了速度分布律，建立了输运过程的数学理论。1868年，玻耳兹曼在速度分布律中引入重力场。

A kiwi fruit flown from New Zealand to Britain emits five times its own weight in greenhouse gases.

一个从新西兰空运到英国的猕猴桃，导致的温室气体排放的重量比它本身的重量还要多。

Sensors on the slopes of the two mountains -- Anak Krakatoa on the southern tip of Sumatra and Tangkuban Prahu in Java -- picked up an increase in volcanic activity and a buildup of gases, government volcanologist Syamsul Rizal said on Wednesday.

印尼火山学家上周三说，安放在苏门答腊岛南端的喀拉喀托火山和爪哇岛上的唐库班珀拉胡火山山坡上的传感器检测到这两座火山的活动在加剧，而且气体也在积聚。

All the death and destruction in the place is caused by the smoke coming from factories and poisonous gases from cars and trucks.And yet this silent lade is hundreds of kilometers away from the nearest factory and the highway.

该地方生物的死亡与环境破坏都是由工厂排放的烟雾以及汽车卡车排放的尾气毒气所致，现在这片死寂的领域已经曼延到离最附近的工厂和高速公路的数百公里处。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。