气化气体对流扩散的基本特征。
The basic characteristics of gas convective diffusion of underground coal gasification (UCG) are studied.
气体对流对热腔起冷却作用。
实验定量地验证了梯度磁场可以诱导气体对流的发生，从而进一步推进扩散火焰燃烧反应。
The experiment quantitatively verifies the existence of convection flows of gas induced by the gradient magnetic field, furthermore the convection flow promotes the combustion in diffusion flames.
为了减少气体对流对传热的影响，测量必须在低气压下进行，然后通过线性外推求算结果。
The measurement chamber must been kept with low vacuum in measuring for that gas convection affecting thermal conductivity is reduced.
气体的密度低到足以形成对流。
The density of the gases are low enough to allow convective currents to develop.
低于一定的临界值的话，它们将不足以克服表面气体的对流混合，因而太阳黑子将完全消失。
Below a certain threshold, they will not be strong enough to overcome the convective mixing of the gas at the surface, and spots will disappear altogether.
温室气体在大气中的增加，会使能量较不容易离开地球，因而导致地表和对流层的温度上升。
Adding to those greenhouse gases in the atmosphere makes it harder still for the energy to get out. As a result, the surface and the lower atmosphere warm up.
在太阳表面，炽热气体的对流运动把这根磁力线冲来撞去。
At the solar surface, convective motions of heated gases jostle the magnetic field line.
燃料：最开始，我们放置一小团黄色的燃料，为了简化，我们可以认为这个燃料是气体，所以它将被对流所影响。
Fuel: to begin with, I'll place a small blob of yellow fuel. For simplicity, we can consider the fuel to be a gas, and so is affected by convection.
在强制对流中，液体或气体的运动是产生压力差的某种外营力造成的。
In forced convection the movement of the fluid or gas is caused by an external agent which gives rise to pressure differences.
发现了密闭腔中自然对流气体有摆现象。
It is discovered that the natural convection gas has the pendulum characteristic.
在CVD过程中，存在着大的温度差和浓度差，将引发自然对流和浓度扩散，它们又与气体的强迫流动以及反应器的几何尺寸和形状相互影响。
Large temperature and concentration differences taking place in CVD process lead to natural convection and concentration diffusion which interact with forced convection and complex reactor geometries.
论述了采用有限元法分析密闭腔中自然对流气体的摆特性。
The pendulum characteristic of nature convection gas in dimensional enclosure is analyzed by finite element method (FEM).
影响双金属轧片式翅片管的传热性能的一个重要因素是管外气体一侧的对流换热系数。
A important factor affecting heat transfer ability of double metal rolling fin tubes is gas-side heat transfer coefficient.
应用abaqus软件的强制对流单元，研究了在特定的气体流动条件下的钢卷与气体之间的传热。
By using ABAQUS software, force convection elements were adopted to simulate the heat transfer between the coil and the forced convective hydrogen.
根据自然对流气体具有摆的特性，从而提出气体摆新概念。
It is discovered that the natural convection gas has the pendulum characteristic, so the new concept of gas pendulum is presented.
如果是受到机械式的搅拌或者是密度梯度发生了变化而使得管中有大量的分层的气体，那么传递就主要通过强制对流或自然对流而发生。
If there is a bulk mixing of the layers of gas in the tube by mechanical stirring or because of a density gradient, mass transfer occurs primarily by the mechanism of forced or natural convection.
本文介绍了含湿混合气体在垂直管内对流冷凝换热的特点，并对其进行了实验研究；
The characteristic of convection-condensing heat transfer of wet flue gas in a vertical tube was introduced and it was studied experimentally.
为了研究强制对流对气体保护焊温度场的影响，通过红外热像仪检测了CO2气体保护焊的温度场，发现在熔池及其邻近区域温度呈圆锥型分布。
To reveal the influence of forced convection on gas shielded arc welding temperature field, the infrared camera was used to investigate the temperature field of the base metal in CO2 arc welding.
一维模型包括气体输运、多孔介质固体的辐射、导热和气固两相间的对流换热。
The one-dimensional model takes into account gas-phase transport, radiation, interphase heat exchange, and solid conduction.
本文研究了气体横向冲刷清洁光管管束时的对流换热过程，分析比较了许多研究者提出的各种计算方法。
The convection heat transfer in gas flow normal to clean tube Banks has been investigated and calculation methods proposed by various investigators have been analyzed and compared.
一种以阻断氧气，破坏自然对流，使火焰在自身产生的二氧化碳气体中窒息的方式灭火的人力灭火机。
The utility model discloses a manual fire extinguisher in the manner of oxygen-insulating to break natural convection, which extinguishes the fire by the carbon dioxide generated by the fire itself.
对流段的一个热门表面出现的，因为热空气的扩大，成为密度较低，而上升(见理想气体定律)。
Convection above a hot surface occurs because hot air expands, becomes less dense, and rises (see ideal gas law).
气体交换：有关对流与扩散的物理学基础。
Gas exchange: The essential physics of convection and diffusion.
由于燃烧使气体温度升高体积膨胀产生的推力对流场有很大影响，是不能忽略的。
The force caused by combustion air volume expanding has great effect on turbulent flow, and it couldn't be ignored.
实验表明，采用对流动相和喷气气体双加热的方法，可以提高对含水流动相的去除能力，避免样品分解。
Experimental results show that the method of heating both liquid phase and spray gas can increase the ability to remove liquid phase and prevent the dissociation of sample.
实验表明，采用对流动相和喷气气体双加热的方法，可以提高对含水流动相的去除能力，避免样品分解。
Experimental results show that the method of heating both liquid phase and spray gas can increase the ability to remove liquid phase and prevent the dissociation of sample.
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