平均速度

By virtue of the instantaneous velocity of vehicles and precise time information supplied by GPS, a mathematic model can be established.

在利用GPS对车辆的定位与导航的基础上，进一步利用GPS提供的即时速度和准确的时间信息，通过数学建模，得到交通流量，平均车速，行程时间，车道占有率等一系列重要交通状况信息，以实现交通状况的实时检测，为城市交通管理系统智能化的实现提供必要保证。

This paper has also done the following work to mend the bugs in the former version: Breaking through the size limit of screen, therefore, it took only one time to form the reliability block diagram of a complex system consisting of many components.;Three kinds of life distributions have been applied: Gamma,Beta,Weibull; Interborough estimate has been done to system MTTF; Optimizing the calculation method of complex system consisting of several sub-systems; Improving calculation speed greatly.

本文对上一版软件的不足部分加以了改进：突破了屏幕大小的限制，对于一个由很多元件组成的复杂大系统，只需一次就可以构造出其可靠性框图；增加了三种元件的寿命分布型式：伽玛分布、贝塔分布和威布尔分布等；增加了对系统的平均寿命的区间估计；改进了计算由几个子系统组成的复杂大系统的计算方法；全面提高了运算速度。

The conclusion of this article contains:(1) The climatology symmetric index and antisymmetric index which represent the uniform system of ocean and atmosphere is defined according to the unique kinetic character of the large-scale fluid. The symmetric mode, a state mode, and antisymmetric mode, a propagate westward mode, of ocean and atmosphere are distinguished clearly from each other. Also, the primary part which determines the symmetric mode emerges from non-divergenct wind and the dominant part which contributes to the antisymmetric mode mostly is irrotational wind. The article also compares the disparity of the climatology distribution of SST and sea surface wind field between 1948-1975 and 1976-2005. The SST of both the tropical Indian Ocean and the tropical Pacific after 80's is warm than before 80's .

主要结论如下：(1)热带太平洋气候平均态所包含的海-气相互作用的资料分析根据海洋和大气的运动特性，定义了表征海洋大气系统的对称模态和反对称模态指数，通过两个指数对热带太平洋和印度洋关于赤道对称和反对称的两个模态进行区分，发现关于赤道反对称的海-气耦合模态主要包含了大气散度分量和海洋SST的相互作用；关于赤道对称的海-气耦合模态主要包含了大气旋度分量和海洋SST的相互作用，并从资料估算了该耦合模态向西传播的速度。

Light industry expanded at an average annual rate of 20%.

轻工业以年平均20 ％的速度增长。

More issue, you could refer to the exercises of chapter 2 by Weinberg, where Weinberg ask you to calculate the spin transformation under Lorentz transformation.

我的意图是把质量归于被囚禁的光速运动能量，从而假定我们所在的真空背景平均宏观速度相对于任何惯性系都为零。

The North magnetic pole seems to be moving northward at an average rate of 1 0 kilometers per year.

北磁极似乎正在以平均每年10千米的速度向北移动。

So important was the invention,so difficult was it to exceed this speed limit that nearly 3500 years later,when the first mail coach began operating in England in 1784,it averaged a mere ten mph.

Book 3，College English双轮马拉战车是一项非常重要的发明，要超过它的最高速度实在困难。过了将近3500年，到了公元1784年，第一辆战车在英国运行，其时速平均只有10英里。

The aeroelastic model experiment of Shanghai World Financial Center was carried out in TJ-2 boundary layer wind tunnel. Then, a study was conducted on the interference effects of distant buildings with half the height of World Financial Center and the nearby Jin Mao Building with nearly the same height of World Financial Center on average and root mean square value of horizontal and rotational displacement, Absolute maximum acceleration on the top of World Financial Center.

在同济大学TJ-2边界层风洞中进行了上海环球金融中心气动弹性模型的风洞试验，分析了距离较远且高度约为环球金融中心一半的周边建筑以及距离较近且高度与环球金融中心相当的金茂大厦对环球金融中心顶部平动和转动平均位移、均方根位移和绝对最大加速度的干扰效应。

The mass flow rate and the impact force were measured and the average mixing velocity of the two phase fluid was obtained based on the mo mentum theorem.

基于动量定理，测定两相流体的质量流量和冲击力，从而得到质量平均的流体混合速度。

The researchers found that after the men stopped their exposure to wet heat, half had "a mean increase in total motile sperm counts of 491 percent after three to six months."

令人意外的是这种不孕迹象回復的速度，研究员发现当这些男人停止洗热水，他们之中的一半在三到六个月后有活力精子的总数平均增加到491%。

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。