对流

A simulation study on the effects of particle precipitation on the polar ionosphere was carried out in this paper.

1前言极区电离层通过对流电场、沉降粒子、场向电流和磁层紧密耦合在一起，在太阳风-磁层-电离层的耦合过程中起重要作用。

There is a certain extent difference for the temperature at each isobaric surface, and the difference is most when the convection is active.

两种仪器在各等压面上的气温值有一定差异，这种差异在大气对流活跃时尤为突出。

Then the temperature distribution and heat transfer of plate were solved by iteration method with successive underrelaxat...

该思路和方法可用于求解耦合导热、自然对流和辐射的非等温平板传热问题。

Migration of radioactive nuclides in groundwater of porous media is controlled not only by groundwater hydraulics, but also by many other physical, chemical processes. Nuclides transport model coupled chemical equilibrium action is to join convection-dispersion model and multicomponent chemical equilibrium model, it is different from traditional transport model based on K〓 completely in theory.

地下水中核素在多孔介质的迁移过程不仅受到水动力的控制，还受到多种物理化学作用的影响，耦合平衡化学作用的核素迁移模型就是把对流—弥散模型与多组分化学平衡模型有机地结合起来，这种模型与传统的基于K〓值的核素迁移模型在理论上是完全不同的。

According to the special structure of the coefficient matrix arising from the SUPG discretization of convection-diffusion problem, or the MAC discretization of the Oseen problem, we use Kronecker product approximation to design the preconditioner.

第一章讨论预条件技术，针对对流扩散问题和 Oseen 问题离散后系数矩阵所具有的特殊结构，用近似 Kronecker 积构造预条件子。

As the frontal system's much closer to North Taiwan, small-scale convection became easily to form in the Southwest area this morning as a result of the convergence of prevailing southwesterly and land breeze. Stronger convection also developed in West Taiwan this afternoon.

昨日预测今(29)日锋面系统会南移至华南，朝台湾北部接近，天气更形不稳定，预计台湾西南部清晨至上午间，盛行风与陆风辐合产生的对流云系移入而造成降雨，今日白天随锋面接近，西半部午后有较强对流发展。

A double distribution thermal lattice boltzmann model presented in this paper is to simulate natural convection with metal foams of different porosity,hole density and Rayleigh number.

本文使用格子-Boltzmann方法模拟了充满金属泡沫的封闭方腔自然对流。

The temperature distribution and limit current were measured experimentally and the overall heat and mass transfer coefficients were determined. Furthermore, the comparison of numerical simulation with experimental measurement showed the good agreement.

本论文所实施的数值模拟方法和电化学实验模拟方法，为多孔介质双浮升力自然对流传热传质的研究提供了行之有效的途径。

However, at present in middle school stream media is applied very limitedly though the potential is huge.

但是，现代中学教学对流媒体应用的需求迫切而现状却是应用较少难以满足实际需要，在建设与需求之间的多个环节存在不同程度的脱节问题。

The results show that this squall line is a combination of follow-up type and consecutive type.

分析飑线整体演变和内部对流单体演变表明：此飑线为后续线型和断续线型的结合。

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％。