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Recently, the United States Rockefeller University, a virologist and a bio-physicist, using a special, illuminated only on the surface of the microscope, has witnessed dozens of molecules in a living cell surface gathering, the final formation of a Kind of terrible virus - HIV process.

近日，美国洛克菲勒大学一位病毒学家和一位生物物理学家，利用一种特殊的、只照亮细胞表面的显微镜，亲眼见证了几十个分子在一个活的细胞表面聚集，最终形成一种可怕的病毒——艾滋病病毒的过程。

The design of a kind of low-frequency power amplifier was given, including a voltage amplification circuit, a display circuit based on FPGA, and a BEF filter.

摘 要：给出了一种低频功率放大器的设计制作过程，包括电压放大电路、FPGA控制的显示电路、带阻滤波器等部分。

Being rich in potassium, alkali and calcium, this belt is a series of potassic and alkalic granitoids and belongs to A-type granites. However, this kind of A-type granitoids was not formed at the end of orogeny.

岩石地球化学研究显示，该岩带的各种岩石类型都具有富钾、富碱和富钙的特点，属于钾质碱性花岗岩类，可归属为A型花岗岩类。

This dissertation investigates the construction of pseudo-random sequences (pseudo-random numbers) from elliptic curves and mainly analyzes their cryptographic properties by using exponential sums over rational points along elliptic curves. The main results are as follows:(1) The uniform distribution of the elliptic curve linear congruential generator is discussed and the lower bound of its nonlinear complexity is given.(2) Two large families of binary sequences are constructed from elliptic curves. The well distribution measure and the correlation measure of order k of the resulting sequences are studied. The results indicate that they are "good" binary sequences which give a positive answer to a conjecture proposed by Goubin et al.(3) A kind of binary sequences from an elliptic curve and its twisted curves over a prime field F_p. The length of the sequences is 4p. The "1" and "0" occur almost the same times. The linear complexity is at least one-fourth the period.(4) The exponential sums over rational points along elliptic curves over ring Z_ are estimated and are used to estimate the well distribution measure and the correlation measure of order k of a family of binary sequences from elliptic curves over ring Z_.(5) The correlation of the elliptic curve power number generator is given. It is proved that the sequences produced by the elliptic curve quadratic generator are asymptotically uniformly distributed.(6) The uniform distribution of the elliptic curve subset sum generator is considered.(7) We apply the linear feedback shift register over elliptic curves to produce sequences with long periods. The distribution and the linear complexity of the resulting sequences are also considered.

本文研究利用椭圆曲线构造的伪随机序列，主要利用有限域上椭圆曲线有理点群的指数和估计讨论椭圆曲线序列的密码性质——分布、相关性、线性复杂度等，得到如下主要结果：(1)系统讨论椭圆曲线-线性同余序列的一致分布性质，即该类序列是渐近一致分布的，并给出了它的非线性复杂度下界；(2)讨论两类由椭圆曲线构造的二元序列的&良性&分布与高阶相关性(correlation of order κ)，这两类序列具有&优&的密码性质，也正面回答了Goubin等提出的公开问题；(3)利用椭圆曲线及其挠曲线构造一类二元序列，其周期为4p(其中椭圆曲线定义在有限域F_p上)，0-1分布基本平衡，线性复杂度至少为周期的四分之一；(4)讨论了剩余类环Z_上的椭圆曲线的有理点的分布估计，并用于分析一类由剩余类环Z_上椭圆曲线构造的二元序列的伪随机性；(5)讨论椭圆曲线-幂生成器序列的相关性及椭圆曲线-二次生成器序列的一致分布；(6)讨论椭圆曲线-子集和序列的一致分布；(7)讨论椭圆曲线上的线性反馈移位寄存器序列的分布，线性复杂度等性质。

Productive labour may render a nation poorer, if the wealth it produces, that is, the increase it makes in the stock of useful or agreeable things, be of a kind not immediately wanted: as when a commodity is unsaleable, because produced in a quantity beyond the ''.

如果生产性劳动所产生的财富(即所增加的有用物品或合意物品的存量)，不是人们当前需要的，例如当商品因生产数量超过''。

Productive labour may render a nation poorer, if the wealth it produces, that is, the increase it makes in the stock of useful or agreeable things, be of a kind not immediately wanted: as when a commodity is unsaleable, because produced in a quantity beyond the present demand; or when speculators build docks and warehouses before there is any trade.

如果生产性劳动所产生的财富(即所增加的有用物品或合意物品的存量)，不是人们当前需要的，例如当商品因生产数量超过目前的需求而卖不出去时，或者当投机者过早地修建船坞和仓库时，生产性劳动反而会使国家更穷。

The box moved down a conveyer belt to another woman working a "pick to light" system: She stood in front of a kind of cupboard with a separate open-fronted bin for each item customers might order from the Web site; a light turned on over each bin holding a part specified in the latest order.

她拿出亮灯箱盒里的零件，然后用扫描器检查一下它的号码（这会让相应箱盒的灯熄灭），最后再把它放到盒子里。

Attention: In fact, this kind of meeting causes the tea of diarrhoea effect, do not suit long-term and successive drinkable, although was pulled,can let you feel weight is lighter, but long drinkable and easy cause alimentation undesirable, especially light to A of vitamin of fat dissolve sex, D, E, K prediction of a person's luck in a given year, return the risk that can have dehydration, calculate so thin still be can thin shrivelled.

注重：事实上，这类会造成腹泻效果的茶，都不适合长期连续的饮用，虽然拉完了会让你觉得体重比较轻，但长时间饮用轻易造成营养吸收不良，尤其是对于脂溶性维生素A.D.E.K轻易流失，还会有脱水的危险，这样就算瘦了还是会瘦得干干瘪瘪。

Fiber optic light grid's spreading a feeling machine is to use a fiber optic light grid to make into of a kind of new fiber optic spread a feeling machine.

光纤光栅传感器是用光纤光栅制成的一种新型光纤传感器。

Iber optic light grid's spreading a feeling machine is to use a fiber optic light grid to make into of a kind of new fiber optic spread a feeling machine.

BG传感器是一种新型的全光纤无源器件，是用FBG作敏感元件的功能型光纤传感器。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。