对流

Angle in flow path is the biggest influence factor to flow index, the relationship each other is negative, and the relationship between the discharge coefficient and angle is also negative.

梯形流道上底宽对流量系数和流态指数影响显著，且与流态指数和流量系数呈正相关关系；流道转角对流态指数的影响显著，且与流态指数和流量系数呈负相关关系。

Although the computational burden is effectively reduced in this way, the treatment has a negative effect on the diurnal variation of radiation, which in turn influences the simulations of convection and precipitation.

这样虽然有效的减少了计算机时，但对辐射日变化的模拟会产生一定的影响，并进一步影响对流和降水的模拟。

The influence on the motion of single solid particles in a Newtonian fluid by melting and convection was direct simulated.

本文对牛顿流体内溶解与热对流对单颗粒在垂直管道中的沉降运动进行了直接数值模拟。

The results of numerical experiments, using the four-dimensional variational data assimilation system of the nonhydrostatic mesoscale model MM5, show that: the tangent linear model and adjoint model conducted by keeping the "on-off" switches the same as the basic state, can provide a good approximation of the first-order information to the NLM perturbation and a good descent direction for the minimization procedure; switching on and off at every other time step in the Kuo cumulus parameterization scheme don"t impact the convergence rate of cost function; the existence of the switches don"t impact improvement to the MM5 model rainfall prediction because that not only specific humidity ,but also wind, temperature and pressure are assimilated into the model.

非静力中尺度数值模式MM5的四维变分资料同化系统进行的数值试验结果表明："开关"变量保持与基态一致，所构造的切向线性模式能够提供关于非线性模式扰动的一阶近似，伴随模式所计算的梯度值能够为最小化过程提供较好的下降方向；郭氏降水参数化方案中对流每隔一个积分步的交替发生并不影响目标函数最小化的收敛速度；"开关"变量的存在也不影响将风、温度、气压和比湿结合起来同化对MM5降水预报准确性的提高。

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

Analysis nonideal factors in pipeline ADC and put forward some methods to decrease these nonideal factors.

对流水线ADC中的非理想因素进行系统分析，提出了降低非理想因素的方法。

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。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷