同时存在

Meantime, due to there are many fluctuating modes in plasma, so it is able to bring a new beam-wave interaction mechanism, by it people can invent some new type high power microwave apparatus.

高功率微波装置中的电流密度很大，空间电荷效应强烈，影响了功率的提高，克服空间电荷效应的有效方法是在高功率微波器件中填充等离子体，由于等离子体对空间电荷的中和作用，传输电流会大大提高，从而大幅度提高输出功率，同时由于等离子体中存在多种波动模式，有可能带来新的注波互作用机制，发展新型的高功率微波器件。

Methods The records of 93 cases with midfacial old fracture admitted to our hospital between Jan.2001 and Dec.2003 were retrospectively studied.

我科自2002年1月~2003年12月共收治陈旧性面中部骨折93例，针对不同患者的具体情况，分别采取相应的手术入路和治疗措施，使大多数患者都获得了较为满意的效果，同时也发现存在的一些问题。

Using the concept of Boolean functions and combinatorics theory comprehensively, we investigate the construction on annihilators of Boolean functions and the algebraic immunity of symmetric Boolean functions in cryptography:Firstly, we introduce two methods of constructing the annihilators of Boolean functions, Construction I makes annihilators based on the minor term expression of Boolean function, meanwhile we get a way to judge whether a Boolean function has low degree annihilators by feature matrix. In Construction II, we use the subfunctions to construct annihilators, we also apply Construction II to LILI-128 and Toyocrypt, and the attacking complexity is reduced greatly. We study the algebraic immunitiy of (5,1,3,12) rotation symmetric staturated best functions and a type of constructed functions, then we prove that a new class of functions are invariants of algebraic attacks, and this property is generalized in the end.Secondly, we present a construction on symmetric annihilators of symmetric Boolean functions.

本文主要利用布尔函数的相关概念并结合组合论的相关知识，对密码学中布尔函数的零化子构造问题以及对称布尔函数代数免疫性进行了研究，主要包括以下两方面的内容：首先，给出两种布尔函数零化子的构造方法，构造Ⅰ利用布尔函数的小项表示构造零化子，得到求布尔函数f代数次数≤d的零化子的算法，同时得到通过布尔函数的特征矩阵判断零化子的存在性：构造Ⅱ利用布尔函数退化后的子函数构造零化子，将此构造方法应用于LILI-128，Toyocrypt等流密码体制中，使得攻击的复杂度大大降低；通过研究(5，1，3，12)旋转对称饱和最优函数的代数免疫和一类构造函数的代数免疫，证明了一类函数为代数攻击不变量，并对此性质作了进一步推广。

But in writing an article for seeing, the qualitative analysis is important, the opposite less of the quantitative analysis; At the same time, some articles of the proceeding quantitative analysis also exists some problem, particularly for some misapplication the econometrics method, make some research apparently so but actually not.

但在笔者所见的文章中，定性分析的居多，定量分析的相对较少；同时，进行定量分析的有些文章也存在一些问题，尤其是对于计量经济学方法的一些误用，使得一些研究似是而非。

Contrary to the miscellaneousness of the city, this world is simple in social relations.

这个世界在空间、时间和社会结构上的特点是美的人性存在并得以保存的原因，同时也是小说家主观选择和追求的结果

The mismatch between grid construction and development of power sources continues to exist.

在取得显著成就的同时，影响电力工业科学发展的深层次问题仍然存在。

The inter-group differences in application of modality realizations are significant, esp. in high and low value modal occurrences. Ordinary teachers have employed more high value modal realizations than model teachers, but fewer cases of low value modal realizations than model teachers.

同时，研究对象教学话语中高值情态手段的使用也占一定的比例；2优秀教师和普通教师在情态手段的使用上存在显著的差异，特别表现在高值和低值情态手段的使用上。

That is the real modernize harmonious society. There are much problem in our country.

我们在看到成绩的同时，也要看到我国还存在很多问题急待解决。

On tne basis of reviewing the metnod of calculating firm energy of draw-down period and considering the conflicts between the hydropower and irrigation water requirement, this paper proposes a modificative method, applying multipurpose decision of system engineering combined with incremental dynamic programing with analysis to obtain an optimum program which would yield the maximum economic benefit.

本文针对水库设计供水期保证电量计算方法存在的问题，和发电与灌溉用水等矛盾，应用系统工程多目标决策，和增量动态规划与分析相结合的方法，提出了能使电力系统基建投资省、保证电量大、和灌溉用水多的综合利用效益高的优化方案；同时还得出了具有长期予报的水库供水期最优调度的一般规律，应用该规律能迅速方便地得出最优方案。

Intel denies any wrongdoing."This is an extremely competitive market," says Intel's Chuck Molloy."We have to compete aggressively and we do—but we also compete within the bounds of the law."

Intel否认其行为存在任何错误，"这是一个竞争异常激烈的市场"，Intel公司的Chuck Molloy说，"竞争方式上，我们必须咄咄逼人，事实上我们也正在这样做，但同时我们的竞争行为都处在法律允许的范围内。"

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失