平均速度

The control volume integration was applied to deduce the discrete expressions of the convection-diffusion equations. The staggered grid and SIMPLE algorithm were introduced to deal with coupling between pressure and velocity, and then the numerical computation expressions of such variables as fluid flow velocity and pressure were deduced. Using the backward difference method and incremental theory to discretize the governing equations for fields of chemical reaction, material structure and chemorheology, the numerical computation expressions of variables such as the monomer conversion, average molecular weight and fluid viscosity were constructed.

应用控制容积积分法导出了对流—扩散方程的离散表达式，引入交错网格技术与SIMPLE算法，实现了耦合的压力场与速度场的分离式求解，推导得到了流体的流动速度、压力等物理量的数值计算式；采用向后差分方法和增量方法，实现了化学反应场、材料结构场、化学流变场控制方程的离散，获得了反应转化率、聚合物平均相对分子质量、流体黏度等物理量的数值计算式。

Besides, as to inpainting problem in wavelet domain, we introduce a new iterative model. In this model low frequency and high frequency will carry on processing separately, enormous speed up the image repair convergence rate, and even if as high as 90% wavelet coefficient have been lost, this model will also be able to have the very good repair effect. In the old model, to compute the curvature we have to transform the coefficients to the pixel domain, and then transform back to the coefficient domain for several times and this method can solve this problem and speed up the iterative convergence.

其次针对小波域中图像修复的问题，本文提出了一种新的小波域图像修复模型，该模型根据小波变换后系数相关性的特点，将低频和高频分别进行处理，极大的加快了图像修复的收敛速度，并且即使丢失高达90%的小波系数，该模型也会有很好的修复效果，有效的解决了传统的TV- Wavelet模型在计算图像的平均曲率WCURV时，需要反复进行小波分解与重构的计算，迭代速度慢的问题。

By the cooling curve and the temperature field, it can he known that, the solidification time of ribbon is 1.0×10^(-4)s, the even solidification rate of ribbon with 60 μm thickness is about 10^6K/s, and the temperature of cooling process does not obviously go back by the release of solidification latent heat. The solidification rate of ribbon is at 0.010-0.394 m/s, and it changes from high to low with the prolonged solidification time.

由冷却曲线和温度场曲线类比结果可知，带子的凝固时间为1.0×10^(-4)s；单辊快淬的平均冷却速度在10^6 K/s数量级，且凝固潜热的释放不会明显地引起冷却过程的温度回升；带子的凝固速度在0.010~0.394 m/s范围之内随凝固时间的延长逐渐由大变小。

The highest speed between hurdles of Liu Xiang surpass the average speed of the other 8 top 110m hurdlers' technique in world track and field championship in Paris France 2003 . The number of the clearance of hurdles in a high speed is as many as others.

刘翔的最高栏间速度超过了2003年法国巴黎世界田径锦标赛前8名的运动员平均最高分栏速度，保持高速度过栏的区间数也同其他优秀运动员相当，具备了战胜世界顶尖高手的实力。

2The speed of creating random series used irrational fraction arithmetic was faster than that of multiplicative congruence arithmetic. The correlative value of random series almost was zero.(3) Regarding not harm the images quality as the premise, the speed of FM screening was heightened.

主要结论：利用所建立的条件半色调函数进行图像加网，操作简单、控制精确，使发生阶调不连续处的密度差平均减少到0.01275，明显改善了调幅加网印品的质量；(2)无理数取尾法产生随机数的速度快，数列间几乎没有相关性；(3)在不损失图像质量的前提下，提高了调频加网的输出速度。

Keyboard code location relative speed equivalence; Input dynamic average code length; Input speed code length; The reasonable index of key-Location distribution.

关键字］键位相关速度当量；输入动态平均码长；输入速度码长；键位分布合理指数。

Train operation speed can reach a maximum of 80 kilometres per hour, the average operating speed of not less than 35 kilometres per hour.

列车的最高运行速度可以达到每小时80公里，平均运行速度不低于每小时35公里。

So impressive was this invention, so difficult was it to exceed this speed limit, that nearly 3,500 years later, when the first mail coach began operating in England in 1784, it averaged a mere ten mph. The first steam locomotive, introduced in 1825, could have a top speed of only thirteen mph and the great sailing ships of the time labored along at less tan half that speed.

这一发明给人的印象如此之深，要超过它的最高速度又如此之难，以致于过了将近三千五百年，到了公元1784年第一辆邮车在英国运行时，它的时速平均只有十英里。1825年问世的第一辆蒸汽机车，最高时速仅为十三英里，而当时的大帆船仅以不到火车一半的速度在海上慢慢颠簸。

Considering the effect of interval on the original estimation accuracy and noise factors, the optimal interval, which minimizes estimation errors, is derived. It is related with MT's velocity. In order to reach the optimal interval, joint velocity estimation and interval calculation are applied. Finally, the feasibility of proposed algorithms is discussed.

通过对AWGN信道下的COV速度估计精确建模，数值分析了协方差计算间隔对COV算法本身精度及噪声因子的影响；根据分析的结果，以归一化平均误差最小为目标对估计算法进行了改进，获得了基于COV的精确速度估计；最后还对算法的可行性进行了讨论。

In kick hitting, the moving forward velocity of bat is the highest when the ball was hit at the right moment, which the left elbow angle is almost 180 degrees and the right elbow angle is between 100-110 degrees. In the hitting process, the displacement of body in backward/forward direction and the resultant velocity with kick hitting are larger than those with glide hitting.

一、在击中球瞬间抬腿击球法左肘关节角度接近伸直与右肘关节角度介於1 00度110度时，球棒的前移速度最大；且在整个挥棒过程中前后方向身体重心位移、合速度明平均大於滑步击球法。

This paper discusses design and realizable methods of remote test output interface from logical design angle.

本文从逻辑设计的角度讨论遥测输出接口的设计及实现方法。

This also 星体投射plies to buildings, structures and geological features.

这也适用于建筑物和地质特征。