速度

Usually it streams past the earth at less than 1 million m.p.h., but when that wind gush ed from a rare gap in the sun's tangled magnetic web, its velocity exceeded 2 million m. p. h. and particle density was 30 times normal

通常，太阳风流经地球的速度不会超过每小时100万英里，但是，当这股风是从太阳扭结在一起的磁网罕见的断层中喷出的时候，其速度就会超过每小时200万英里，密度是一般带电粒子流的30倍。

Usually it streams past the earth at less than 1 million m.p.h., but when that wind gushed from a rare gap in the sun's tangled magnetic web, its velocity exceeded 2 million m. p. h. and particle density was 30 times normal.

通常，太阳风流经地球的速度不会超过每小时100万英里，但是，当这股风是从太阳扭结在一起的磁网罕见的断层中喷出的时候，其速度就会超过每小时200万英里，密度是一般带电粒子流的30倍。

Mach'.'' 2, it is flying at twice the speed of sound.

马赫'。''的速度飞行，那么它的速度就是音速的两倍。

If a plane is flying at Mach 2, it is flying at twice the speed of sound.

假如飞机以二马赫的速度飞行，那么它的速度就是音速的两倍。

However, the speed of the rotor rotation speed did not change the high magnetic field, or magnetic line of force will not be able to cut the copper.

不过此转子转动速度没有磁场变换之速度高，否则磁力线将不能为铜棒所切割。

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。

In the research to demand of International reserves,first, according to the affective character of demand to transition of International reserves, choosing the decision theory of Markov and dynamic transition equation as basic model, the paper has set up two transition methods--- stationary matrix and dynamic matrix, the later matrix has improved the sensitive reaction to time and velocity. Second, combining with knowledge of linear algebra, the paper has analyzed and testified the positive associated relation between transition matrix elements on main diagonal and the convergent speed of system, and explained why international reserves transition embodies the character under new situation and why the transition process can be accelerated by the strike of international idle money. Third,on the quantitative calculating to elements of transition matrix,referring to multiplication theory and decomposing-composing method of system, the paper has transformed main three-factor deciding confidence of international monetary into detail modulus by comparing analysis measure,now the matrix has been decided.

在国际储备的需求分析研究中，本文首先选择马尔可夫转移方程作为基础模型，根据需求对外汇储备结构的影响特点，提出非定常转移矩阵变换方法，拓展了马尔可夫变换对时间和速度的敏感性；结合线性代数知识，分析证明了定常转移矩阵的主对角线元素值的大小与系统的收敛速度的正向关联关系，并利用结论解释了国际货币新动向下外汇储备转换表现出的趋势特点以及国际游资冲击对国际货币结构变化的加速影响；在转移矩阵元素的量化计算上，本文参考乘数理论和系统分解合成原理，采用对比分析方法把影响国际货币信心的三大要素综合量化为转移偏好系数，然后根据转移偏好系数确定转移矩阵的元素值，其中还分别具体给出了定常转移矩阵和非定常转移矩阵的计算方法及在变换中的使用方法，从而不仅在定量分析上应证了定性分析结论，而且反映了随时间变化的美圆、欧元、日圆的比例结构均衡过程。

In only our first year of Land Speed Racing the Project 750 Assault Team from Malvern, PA was delighted to be able to set a new M/G 750cc motorcycle record of over 166 mph at the 2008 World of Speed.

只有在我们的头一年的陆地速度赛马项目750突击队员从马尔文，巴勒斯坦权力机构很高兴能够创造了新的M /石墨750cc摩托车记录超过一六六英里每小时在2008年世界速度。

The main work and innovation1 In general , a image compression method has different effect to different image . Some are fit for image which has much high frequency . Some are fit for image which has much low frequency .This paper analysis the applicability of fractal algorithm . In this dissertation , an improved algorithum is given . The basic algorithum without eight change and the joint use of quantitative coding , The compression ratio and PSNR can be adjusted , and it can get more quickly speed of coding .2 To a group of exact fractal code , the decoding image can be any resolution .With this characteristic ,choose the proper domain block and range block,this paper get an algorithum which can get higher decoding PSNR and speed than the basic fractal algorithum.3 Give a new method to calculate the scale factor . The calculation of basic algorithum is complex and enormous . The factor of scale is an important variable of the basic algorithm. Now there are two methods to calculate the factor of scale .A new method was given to calculate the factor of scale. The calculation load and complexity are reduced by the new method. Compared with the basic algorithm , the method can reduce coding time.4 The basic fractal algorithum is based on the Collage theorem and contraction mapping theorem . A mathematic model based on basic fractal algorithum is given .

本文的主要工作及创新点主要包括以下几点：1一般情况下，一种图像压缩的方法对不同特点的图像，压缩效果会有所不同，本文利用分形压缩编码对不同特点的图像进行编码，分析了分形编码对不同图像的编码适用性，利用去掉8种变换的分形编码算法与简单的均匀量化编码方案相结合，得到了一种可以调节压缩比与解码质量的分形编码方案，该提高编码速度6倍以上。2分形编码的特点之一是分形解码的分辨率无关性，即对于一组分形编码可以将其解码到任意分辨率下，本文利用分形编码的这一特点，结合不同的量化编码方案，选择合适的定义域块与值域块及适当的编解码分辨率，得到了一种提高解码质量，编码速度提高12倍以上的加速算法。3比例因子是基本分形算法中的一个重要变量，目前有两种计算比例因子的方法，文中给出了一种新的求比例因子的方法，该方法简化了求比例因子的计算，从整体上减小了基本分形算法的计算量，简化了算法4分形压缩的数学基础是不动点定理与拼贴定理，本文根据基本的自动分形编码方法，建立数学模型对其进行推导，得到了用普通数学的极限理论解释分形编码的数学表达式，从而对由基本分形编码得到的解码图像中的像素点的值给出了确定的表达式。

First, an optimization algorithm based on the constant linear velocity mathematical model of the camshaft was proposed according to the least square method to finish the curve optimization and simulation, and the fluctuations of the speed and acceleration curves were reduced.

根据凸轮轴恒线速加工的数学模型，提出一种基于最小二乘法的速度优化算法，对加工过程运动曲线进行优化仿真，得到了波动较小的速度曲线并减小了联动轴加速度的跳动。

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