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In prime number distributed research process,and through established one kind of new sieve method and the stair theory,this article obtained about three group of prime number distribution recurrence formula: The 1st is not bigger than x the prime number integer recurrence formula;The 2nd is not bigger than x the twin prime integer recurrence formula;The(3rd Recurrence) formula.

在研究素数分布过程中，通过创立一种新的筛法与台阶理论，得到关于素数分布的三组递推公式：不大于x的素数个数与孪生素数对数量的递推公式；不大于x的孪生素数个数的递推公式；任意偶数x≥6表为两个奇素数之和与孪生素数对数量对数的递推公式。

It is very difficult to discrimnate a natural number to be a prime number by J Wilson s theorem This paper presents another method for discriminating prime number .

本文给出关于质数一个判定准则：数P为质数，当且仅当P不能表示为四个自然数之和，使其中的两数之积等于其余两数之积

Describes how to generate random numbers of articles in the computer does not have a true random number generator, but it can be done to generate the number of repetition rate is very low, this might seem true random numbers, to achieve this functionality program is called pseudo-random number generator.

详细说明：介绍怎样产生随机数的文章，在计算机中并没有一个真正的随机数发生器，但是可以做到使产生的数字重复率很低，这样看起来好象是真正的随机数，实现这一功能的程序叫伪随机数发生器。

The number of protons in the nucleus of an atom is referred to as the atomic number, or proton number, Z.

原子核内质子的数目即原子序数或称质子数，用Z表示。

But the space is the matter, the matter is the string vibration, only has from this the time which vibrates f=1/T to draw out only then has the physics significance, therefore T is in the true significance time, from this deduction: What imaginary number Ict expresses is void, may write *ct,=I pure imaginary number, also is it with Number space Sigma (x1i*x2j)(i, j is subscript, i=j=1,2,3) differs 90 in the space, the shape for example: Psi ==a+Ib, constitutes a duplicate space by psi i* psi j,(definition mark * for ordinary multiplication) may use Four single numbers

而空间就是物质，物质就是弦的振动，只有从这个振动f=1/T引出的时间才有物理意义，所以T才是真正意义上的时间，由此推论：虚数Ict所表达的是一个虚空间，可以写成*ct，=I纯虚数，也即它与实空间Σ(x1i*x2j)(i，j为下标，i=j=1，2，3)在空间上相差90度，形如：ψ==a+Ib，由ψi*ψj构成一个复空间，可用四元数

This invention is to provide a telephone exchange capable of operating any one of the juxtaposed and registered extension radiotelephones and wire telephones by only specifying one extension dial number. For this purpose, a wire port physical number is registered in association with a radio port physical number so that two normally separate extension wire telephone (006a, 006b, etc.) and radiotelephone (008a, 008b, etc.) can be handled as if they were a single-channel extension phone with a branch switch.

本发明是为了提供这样一种电话交换机：只需指定一个分机拨号号码，便可使用并置的和被注册的分机无线电话和分机有线电话中的任何一个，因此，有线端口的物理号码和无线端口的物理号码被联合注册，这样，两个在常规上是分离的分机有线电话（006a，006b……）和分机无线电话（008a，008b……）可以象具有一个分支切换a branch switch）的单通道分机电话一样来被处理。

Wheel' pattern were shown around mixed fibrous filter membranes, number of vessel ramification was 112.5±11.31 and ratio of vessel area/CAM area was 6.19±1.29﹪, but there were not localized allantoic vessels developing in the control group, the number of vessel ramification and ratio of vessel area/CAM area in control group were 82.6±8.05 and 1.78±0.33 respectively, so there was significant difference between PMP and control groups. In above mentioned conditions, the number of vessel ramification and ratio of vessel area/CAM area in VEGF group were 128.4±10.02 and 7.44±1.36 respectively, so there was no difference between PMP and VEGF groups.

结果显示：当 PMP的浓度为80 μg/ml时，孵育72小时后混合纤维素滤膜周围可见到放射状密集生长的血管网，血管分支数为112.5±11.31 ，血管面积为（6.19±1.29）﹪，而在对照组无特异性密集血管生成，血管分支数为82.6±8.05，血管面积为1.78±0.33，二组比较有显著性差异（P＜0.05）；而与VEGF组比较，后者的血管分支数为128.4±10.02，血管面积为7.44±1.36，二组比较差异无显著性。

METADATA\SPECSPK\SPKINFO. In it, there are information of the speakers, such as sequence number of each speaker, serial number of the dialect each one used, their name, age, sex, educational background, contact telephone number, time of recording, topic for spontaneous monologue, coverage and degree of noise of recording room, level of Putonghua proficiency, and etc..

METADATA\SPECSPK\SPKINFO 目录中的 WORD文件，其中有每个发音人的序号，所用本方言点语料编号、姓名、年龄、性别、文化程度、联系电话、录音时间、口语独白的话题、录音场所面积、录音场所噪音、普通话等级等信息。

The essay discusses the characters of the second order linear recurrent sequence, which any number three , number four and number five terms of sequence nestie up, and develops the definition of the arithmetical progress and the geometric series in the united form according to these characters.

讨论了二阶线性递归数列任意相邻三项、四项、五项的性质，并且由性质导出了等差数列与等比数列在统一形式意义下的定义。

After a collision, a station chooses a random number between 0 and 2 i -1, where i is the number of times that particular packet has been in a collision, and waits that number of slots, before attempting to retransmit.

在碰撞以后，驻地选择一个随机号在0 之间和槽孔的数字，在试图之前转播的2 i -1， i 是特殊小包是在碰撞的次数的地方，并且等待。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"