速度分布

In addition, to the simple beams with equal sectional area but different sectional shape, the distribution of the moment and the deflection of the beam and on the displacement and the velocity of the mass are different.

另外，轴向上同一位置处，横截面面积相等而形状不同的梁，其弯矩分布、挠度分布、刚性质量块的位移和速度均产生了较明显的变化。

A new particle swarm optimization, PSO with bounded mutation operator, was developed. In contrast to the original PSO, in this algorithm, PSO with bounded mutation operator would make the particles redistributed cquably close to boundary when place of particle exceeds feasible region during iteration.

提出了一种新的粒子群优化算法——带边界变异的PSO，其原理是：在迭代的过程中，当粒子的位置超出可行域时，带边界变异的PSO让粒子的位置重新均匀分布在边界附近；当粒子的速度超出可行域时，则使其均匀分布到整个可行区间，而不是像原始PS0那样在这2种情况下都只是简单地取边界值。

Known by the central limit theorem, the distribution of the absurd will eventually converged on the Gaussian distribution, while the speed chosen by the decision of the tail function.

由中心极限定理所知，这个荒谬的分布将最终汇聚于高斯分布，而其速度由所选择的尾部功能决定。

The molecular weight dependence of the distribfition of polymer molecules between the coacervate and the dilute phases on the phase separation of polymethylmethacrylate-acetone-methanol system has been proved to follow the relation first derived by Flory for binary systems: f"_j/f′_j = Qe~_j where f"_j and f′_j are the weight fractions of the polymer molecules of molecular weight M_j in the coacervate and in the dilute phases respectively, while Q and σ are parameters.

1。聚甲基丙烯酸甲酯-丙酮-甲醇体系的两次分相实验用θ-溶剂中的沉降速度法测定分相前试样和浓相的分子量分布曲线，得到高分子在浓稀相重量分配的分子量依赖关系 f_j=Qe~证实Flory的溶度函数形式与实际相符，并适用于三元体系的相分离，但Q值与两相体积比R值并不相同。 2。再分级使级分的分子量分布宽度随再分级次数的增加而减小，通常认为到第三次再分级其效果已不显著并不确实。

Based on the Navier-Stokes equations in conservative form derived with respect to nonorthogonal curvilinear coordinates and nonorthogonal velocity components, the numerical method for solving 3D viscous flow has been discussed.

本文基于非正交曲线坐标与相应的非正交速度分量下导得的守恒型N—S方程，讨论了求解三维粘性流动的数值方法，计算中显式时间推进算法与Baldwin—Lomax湍流模型被采用，应用本工作发展的程序，作为算例计算了一个沿径向非等截面环形叶栅的三维粘性流场，得到了诸如三维压力分布，总压损失分布以及十分清晰的二次流动图景等丰富的流场信息。

Based on the information taken from the subcompartmental records a comparison between the actual and normal forests was made and a new point of view was proposed in the article: in the case of cultivating timber-forest which is different in cutover age, age class and growing speed within the range of the whole forest station, the forest age class distribution showing the opposite shape of "J" is of more benefit to keeping the relative stability of all the age class area than the age class distribution of th...

本文在统计森林资源小班档案卡片有关资料的基础上，把现实林分与法正林相比较，用法正林学说来指导全场森林的调查。并提出了一个新的观点：在整个经营单位内，培育不同生长速度，不同主伐年龄，龄级期不同的用材树种，森林的龄级结构呈反"J"形分布此法正分布更有利于维持各龄级面积的相对稳定，并且，年伐量的波动不大，有利于森林的永续利用。

This article presents an ideal energy distribution for improving the cutting speed of thin plane glass.

本文透过多曲面反射镜的设计来控制雷射光能量场的分布，使YAG雷射应用於薄板玻璃切割时能加快切割速度，并利用田口法进行多曲面反射镜的优化，使雷射光能量场的分布更接近预期状况。

The VAP method is used to retrieve the Doppler radar wind vector field. During the design of the calculation of the wind direction and intensity by using the distributions of the Doppler velocity on the distance circle, no obvious pulses are needed in the radar base data.

采用VAP方法反演多普勒雷达风矢量场，在利用各个距离圈径向速度随方位角分布的廓线推算风向和风速的设计中，要求基数据速度资料中没有明显的脉动。

The fiber length distribution of taker-in droppings and card strips under such conditions as three kinds of pin taker-in and one kind of saw-tooth taker-in at speeds of two doffer and four taker-in level are tested with roller cotton fiber length analyzer.

用罗拉式纤维长度测量仪对3种梳针刺辊和1种锯齿刺辊在二档道夫速度和四档刺辊速度的不同工艺条件下的刺辊落棉和盖板花纤维长度分布进行了检测。

The maximum tangential velocity decreases downwardly and shifts gradually towards the center wall along the axial direction, which are mainly caused by the effects of the friction loss along the wall and the turbulent energy dissipation.

轴向速度沿径向呈明显的线性分布，下行轴向速度沿提升管外壁向封闭罩内壁的径向方向逐渐增大。

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