查询词典 convection

Influence of Magnet on Deposition Uniformity of Pulsed Ion Source;2. Natural convection is induced by non-conservative body force, which can be gravity, centrifugal or magnet ic force; and enhancement by applying magnet ic fields is a new technology in heat transfer.

自然对流是由非保守体积力驱动的流体流动，这种体积力可以是重力、离心力以及电磁场力等；通过外加梯度磁场来影响流体的流动，产生强化换热效果的方法是一种新型的强化技术。

Natural convection ; non-conservative force ; body force ; buoyancy force

自然对流；非保守力；体积力；浮升力

Charges accumulation and electric field development within two convective clouds which had different degree of convection and wind shear in Changchun were simulated by introducing an improved noninductive charging mechanism including the influence of particle diameters and impact velocity into the three-dimensional dynamics and electrification coupled model.

在三维强风暴动力和电耦合数值模式的基础上，考虑了粒子直径及降落末速差对转移电荷的影响，把非感应起电参数化方案作了进一步改进，对长春地区两次不同强度、不同环境风切变的对流云内电荷累积和电场发展过程进行了模拟分析。

A new method is presented in this paper for solving unsteady nonlinear convection-diffusion equation with the source term.

本文提出一种新的求解含源项，非定常、非线性对流扩散方程的数值方法。

It is concluded that two factors (convection evaporation and solvent/nonsolvent exchange rate) are important in controlling membrane morphology for gas separation.

结果表明，对流蒸发和凝胶过程溶剂/非溶剂的交换速率对形成非对称结构的高渗透性能气体分离膜有着重要的影响。

The seasonal evolution, precipitation, convection, low-level west wind and SST all have a trend of spreading northeastward.

西北太平洋夏季风的季节演变，降水、对流、西风和海温都有向东向北扩展的趋势。

At pentad 31 or 32 and after monsoon onsets, precipitation, convection, low-level west wind and SST extend northeastward, and at nearly pentad 41 they arrive at the most northeast zone quickly, and then their intensities decrease, but they still have a trend of extending eastward.

在31或32候(6月初)季风爆发后降水、对流、西风和海温开始向东向北扩展，在41候(7月下旬)左右时都迅速达到最北地区，之后强度减弱，但仍有向东扩展的趋势。

The stress fields from middle and large scales of mantle convection may jointly lead to the northwestward rifling of Japan, the southeastward rifling of Sea South China Sea, and specific tectonic features of the Ryukyu and Philippine arcs.

中尺度和大尺度地幔流应力场的共同作用，可以解释日本海盆北西向和南海海盆东南向的不对称扩张特性，及各段沟弧系的构造活动差异。

Consistent with the rift of the Eurasian plate and the northwestward spread of the Pacific plate, the stress field from large scale of mantle convection displays a skeleton of dumbbell shaped with sinistral compresso-shear at the north, dextral compresso-shear at the south and slip in the middle. Energy converge strong at the south is attributed to the northward movement of the Indian ocean.

反映欧亚板块东南向蠕散、太平洋板块北西向扩张的大尺度地幔流应力场，展现出北端左旋压扭、南端右旋压扭和中间滑移的哑铃状构造动力格局，南强北弱的能量汇聚与印度洋板块北向推挤有关。

The effects of variable properties on flow and heat transfer were also studied. 1. SIMPLEC algorithm was used to simulate the laminar natural convection flow in horizontal concentric annuli with the assumption of constant properties. Numerical studies range are as follows: Ra〓 number 100～10〓, radius ratio 1. 2～10.Velocity and temperature distribution profile and the heat transfer result were derived. The comparison of heat transfer results under the boundary condition of constant heat flux and constant wall temperature was also made.

对水平同心套管内层流自然对流采用SIMPLEC算法进行了数值模拟，在〓，半径比1.2～10范围内使用定物性假设进行了计算，得到有关温度和速度的分布以及相应的换热结果，并比较了内壁面分别处于定热流和定壁温条件下换热结果的差异，根据换热计算的结果整理并拟合有关的换热关联式。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。