发展速度

From the industry to observe,the author discovers that the regional gap of the secondary industry was the primary contributor,but the rate of was descending.The third industry was becoming the important contributor.The industry structure adjusting and the agglomeration of the third industry and the secondary industry are the primary reason of the forming of the disparity of between the east and the rest areas.In the 1978 to 2005,the absolute convergence of economic growth didn't occur,the other way round,the club convergence of economic growth occurred in the east and in the middle.The speed of the economic growth in the east was higher about 1 centigrade than the middle and the developing west,and was higher about 2 centigrade than the west.

从以省区为单元的中国地区经济发展差距形成的产业构成来看，第二产业的地区差距长期以来都是中国地区经济发展差距的主要贡献者，居主导地位：但是随着第三产业产值比重的提高和第三产业地理集聚的非均衡性扩大(1990年以后)，第三产业的地区差距正逐渐演变为以省区为单元的中国地区经济发展差距形成的主要贡献者。1978-2005年期间，中国地区经济增长并没有出现绝对收敛趋势，而是表现为东中部地区内部的"俱乐部"收敛。1978-2005年东部地区经济增长速度比中西部地区更快，东部地区平均经济增长速度比中部地区高1个百分点左右，比西部地区高接近2个百分点，地区间经济增长速度存在显著的差异。

In this thesis thecurrent situation and future of the aged has been analyzed mainly, seven characters werediscussed as followed: trend of aging phenomenon, high growing speed of this phenomenon,big absolute unit of population, un-equilibrium distribution in the whole country, low healthylevel, exceeding economic development. The influence on economy, society, family,psychology and so on had been discussed also. It pointed out the importance of stabilizing thebirth level, performing new trinity mode of providing for the aged by themselves, by thesociety and by their children, taking actions to delay the aging speed correspondingly andfulfilling elementary service for their health.

本文分析了我国人口老龄化的现状及发展趋势，讨论了我国人口老龄化速度快，绝对数大，分布不均衡，健康水平低，超越经济发展等七个特点，论述人口老龄化对我国经济、社会、家庭，心理等影响，提出要稳定生育水平，实行自身、社会、子女养老三位一体新模式，采取相对延缓老龄速度，实施老年初级健康服务等应对策略和对策。

The mean velocity distributions in turbulent boundary layers of smooth surface and two different riblet surfaces are measured with IFA300 constant-temperature anemometer in low-speed wind tunnel to validate the full development of turbulent boundary laye. Friction velocity and wall friction stress of turbulent boundary layer are obtained with the least-squares fitted curve of the sublayer velocity distribution based on Spalding formula, and virtual origin position of riblet surface can be acquired accurately.

在低速风洞中来流速度一定的情况下使用IFA300恒温热线风速仪测量了光滑表面和两种不同尺寸的脊状表面湍流边界层平均速度分布剖面，并验证了试验段湍流发展的充分性；通过应用Spalding壁面公式使用最小二乘法精准拟合了实验测量的边界层内层速度分布曲线，得到了湍流边界层壁面摩擦速度并进一步求得湍流壁面摩擦应力，较准确地计算出脊状表面的虚拟原点位置，并通过与对数律公式拟合结果比较分析，证实了该方法更加准确有效。

In order to promote the development of speed roller skating smoothly and orderly in our country, and improve the competitive level of our country, we should study the affecting factors for the development of speed roller skating of our country.

为了更好地推动速度轮滑运动在我国稳步而有序地发展，提高我国速度轮滑的竞技水平。有必要对影响我国速度轮滑运动发展的因素及对策进行研究。

Distribution of detailed flow parameters such as liquid velocity and stream function were measured by this method.

认为反应器上升段表观气速对液相水平速度和垂直速度均有影响，其中对液相垂直速度的影响更大：表观气速增大，液相最大垂直速度一般增大，但这一变化规律并不是单调的；PIV对折流区的观测反映了该区域流场在气相通入后的最初25 s内的变化历程，流场发展的快慢与进气口的气速有关，气速越大，流场发展得越快。

Numerical simulation results reveal that the tangential, axial velocity and radial velocity in the annular space are asymmetric distribution, and basically symmetric distribution in the separation space.

在旋风分离器的三维速度中，切向速度在环行空间具有明显的非轴对称分布，向下进入分离空间后很快发展为轴对称分布；轴向速度和径向速度在环行空间存在一定的非轴对称性，而到分离空间后基本上是轴对称分布了。

At constant viscosity, by increasing the liquid flow rate, the liquid film's velocity is increased; at the same experiment condition, the frequency of the liquid film is same at the same radial direction; the air current has minimum effect on liquid film bottom flow velocity, while it has an obvious effect on liquid film surface flow velocity. The longer the distance between liquid film and the inlet, the lower the pulsatory frequency and longer the wavelength.

在粘度基本不变的情况下，随着液体质量流率的增加，液膜流动速度随之增加；在同一个实验条件下，沿圆管径向各质点的频率基本保持不变；气流场速度对液膜底层流动速度影响很小，对于液膜表面流动速度有着较大的影响；沿液膜流动方向，液膜的脉动速度逐渐增加，脉动频率降低，脉动波长变长，与报道的通过快速摄像得到的液膜发展趋势一致，证实用PDA研究液膜流动是可行的。

Compared with the sail style and the hang style, the hitch kick style have advantages to join the front swing and trig swing of swing leg tightly, to speed the buffer and stretch of take-o?leg, to acquire more vertical muzzle velocity and to decrease losing of horizontal velocity, which results in more velocity and more angle when take o?.and more vertical height of body center, has advantage to obtain better result.

走步式空中技术能在起跳过程中通过紧密衔接的摆动腿加速前摆和制动前摆，加快起跳腿的缓冲和蹬伸动作速度，促进身体重心获得更大的垂直速度，而且水平速度没有更多的损耗，从而获得更大的腾起速度和腾起角，腾起时身体重心的垂直位置更高，最终取得优异成绩，促进跳远起跳技术朝着快速积极的方向发展。

This paper reviewed the theory, development and applications of 3 typical velocity analysis technologies, stack velocity analysis, migration velocity analysis and tomographic inversion.

主要对叠加速度分析，偏移速度分析和速度层析反演三大类典型的速度分析方法的基本原理，发展及应用条件等作简要的回顾与介绍。

But nowadays, come bldg. development speed puts delay gradually...

但如今，一来建筑业发展速度逐渐放缓。。。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。