速度分布

However, with the increasing of flow rate, the relative velocity increased, the absolute velocity decreased and the total pressure difference between the inlet and outlet decreased.

2不同流量工况下，双流道泵内速度场和压力场分布规律类似，但是，随着流量的增加叶轮流道内相对速度增大、绝对速度减小，流道进出口总压差逐渐降低。

I. d. Bernoulli random variables. First, we can get the upper bound with order from Chebyshev inequality. Second, a better upper bound was gotten with the new inequalities, which can fasten the convergence rate.

并对服从两点分布的独立随机变量X1，X2，…，X进行研究，首先利用Chebyshev不等式得到随机变量偏离方差ES的上界，但它只有阶的收敛速度，然后利用新的不等式得到一个新的上界，它有更快的收敛速度，这在探讨收敛速度时有着重要的理论意义。

Firstly, single bubble in the dense zone of fluidized bed was simulated, the second is the curve of the fluid particle, the third is solid space ratio distribution, the fourth is particles velocity vectorgraph and particles volume fraction, the fifth is grain press drop and rapid kinetic energy and rapid kinetic energy dissipation ration.

模拟了反应器中气泡的产生、形成、发展及爆裂，流体质点在运动过程中走过的曲线，炉膛内固相空隙率的分布，床内颗粒浓度场和速度场的分布，床内压降的分布，湍动能和湍动能耗散率。

Combining NA samples the EB estimation with convergence rates is also obtained; Thirdly, for one-parameter exponential distribution family, we give the parameters' EB estimator that is admissible and asymptotically optimal with convergence rates. Finally, Bayesian and hierarchical Bayesian approaches are applied to analyze the reliability performances for series system with cold standby units and the numerical simulation results show that multiple Bayes estimator is superior to Bayes estimator.

其次，针对一类双边截断分布族，在非对称linex损失下构造了经验Bayes决策函数，建立了它的收敛速度，给出了渐近最优的证明；并结合NA样本研究了参数的经验Bayes估计及其收敛速度；接着给出了指数族参数的经验Bayes估计，证明了它是渐近最优的，也是可容许的，同时也获得了该EB估计的收敛速度；最后，运用Bayes与多层Bayes方法研究了具有冷贮备部件串联系统的可靠性指标的估计，并给出了数值模拟结果，结果表明多层Bayes估计优于Bayes估计。

By water imbibing and drying rate experiments, it can be concluded that the velocities are not only related to water saturation, but fluid distribution of pore scale.

岩石的进水及干燥速度实验结果显示，岩石的速度不但和流体饱和度有关系，而且与孔隙流体的微观分布有直接的联系，例如不同的饱和过程会导致不同的速度变化。

First,we proposes the acceleration of Monte Carlo EM Algorithm,which is based on Monte Carlo EM Algorithm and Newton-Raphson algorithm,to improve the convergence rate;Second,the it is shown that the accelerated EM algorithm we proposed has quadratic convergence rate in a neighborhood of the posterior mode;Finally,its excellent performance in convergence rate is illustrated by a classical example.

受Monte Carlo EM算法与EM加速算法启发，本文构造了一种新的EM算法，称为Monte Carlo EM加速算法；证明了该算法在似然函数/后验分布的众数的附近确实具有二次收敛速度，改进了Monte Carlo EM算法的收敛速度；并通过一个数值例子的计算结果说明了该算法的优良性，它兼具实现简单及收敛速度快的特点。

The experiments show that the PS and PSD of particles produced by SAA process can be controlled by adjusting process parameters, and among them, the pressure of the saturator used has the most effect on the PS and PSD, while the temperature of the saturator has the least effect. When using ethanol as solvent, the optimum operating conditions of using SAA process to produce erythromycin micro-particles from erythromycin-ethanol-CO2 system were found as follows. The pressure and temperature of the saturator are 10.5MPa and 70℃, respectively, the inlet flow rate and the concentration of inlet solution of the precipitator are 9 mLmin^(-1) and 15mgmL^(-1), respectively.

实验结果表明：选用乙醇做溶剂可制备出粒径在1~3μm的红霉素超细微粒，大部分微粒形态呈完整的球形；各影响因素对微粒粒径及粒径分布均有不同程度的影响，其中混合器压力对微粒粒径及粒径分布的影响最明显，混合器温度的影响最小，微粒粒径及粒径分布可通过改变操作参数进行控制；在本研究范围内，最优操作条件为混合器压力10.5MPa，混合器温度70℃，溶液浓度15mgmin^(1)，进液速度9mLmin^(1)。

Then, the distribution of tangential, radial, axial components of velocity and pressure is given.

同时得到了流场内部切向速度、径向速度、轴向速度及压力分布规律。

In addition, the definition of characteristic air velocity is presented and the relationship between meteorological parameter and air inlet flow field at unwindy weather are discussed.

除了在180°的背风面区域附近，进风口各点的进风速度与侧风速度为二次多项式关系；而在180°的背风面区域附近，进风速度与侧风速度为Gauss分布关系。

The collision term is two bi-velocity non-dimensionalized reduced ngle tri-velocity model equation is transformed into a bi- h integrating weightedly the non-dimensionalized model equation about the third component of molecule velocity.

采用BGK模型和Shakov模型近似碰撞项，进而引入两个二速度无量纲简化分布函数，通过关于分子速度第三分量取矩积分，将三速度单一模型方程变换为二速度微分方程组。

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