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Because its eyeball is fixed, the whale must move its huge body to shift its line of sight.

因为鲸鱼的眼球是固定的，所以它必须移动巨大的身体才能改变它的视线。

Fast lenses of this optical design shift the focus due to spherical aberration when the f-stop is changed.

采用这种设计的大光圈镜头，在使用不同的f值时，球面相差也不同，导致焦点变化。

And faddish wait for video website place to do, shift the demand that sees TV and movie Internet namely.

而风行等视频网站所做的，就是将看电视和电影的需求转移到互联网上。

Under the wind fairing is a large tachometer with red shift point light.

在风展览会之下是有赤字的变化一个大的转速计点光。

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。

This is occurring because the shift in power is being so rapid, because very few were far-seeing enough to start establishing solid financial relationships in advance and because much depends on the success of the outcome.

这种现象之所以出现，是因为权力变化十分迅速，很少有人能够有足够的远见提前开始建立稳固的财务关系，而且因为大部分都有赖于结果的成功与否。

In the U.S. farm belt, heavy ethanol subsidies, such as a tax break of 51 cents a gallon, encourage the shift.

在美国，农场被赋予巨额的乙醇津贴，比如一加仑乙醇将有51美分的减税，以支持生产。

The head other result brain tumor pledges fasciculus can have in DTT in vain the following 3 kinds of expression:(1) is interrupted,(2) shift,(3) soak.

结果脑肿瘤旁脑白质纤维束在DTT可有以下3种表现：(1)中断，(2)移位，(3)浸润。

Australia's experience of federalism means that it is well placed to make this shift in understanding.

澳大利亚的联邦主义经验意味着理解这种转变很容易做到。

The shift of meaning toward the left goes so far that "liberal" is often used as a synonym for"pink" or"fellow traveler."

自由主义的语义向左派的转移，使之与原来的语义大相径庭，以至于"自由主义者"往往被当做"粉色"或"同路人"的同义词来使用。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。