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The architecture of object-oriented software will involve three levels: a system is a set of clusters; a cluster is a set of classes; a class is a set of features.

面向对象的软件架构包括三个层次：一个系统是一组群集；一个群集是一组类；一个类是一组特性。

In this paper,a design method of two dimensional Linear Phase Nearly Perfect Reconstruction filter banks based on a new class of cosine modulation systems is presented,which can be described as follow: firstly,the Parks-McClellan algorithm is adopted for designing the prototype filter,then by employing cosine modulation,a series of analysis and synthesis filters can be obtained,accordingly a one-dimensional LP-NPR filter banks can be constructed;Secondly,cascading two one-dimensional LP-NPR filter banks in the form of tree structure and using the unimodular transformation,a two dimensional nonseparable LP-NPR filter banks can be obtained.

提出了一种基于一类新余弦调制系统的二维线性相位-近似完全重构滤波器组的设计方法，设计过程分为两个步骤：首先采用Parks-McClellan算法来计原型滤波器，再经过余弦调制能到一系列的线性相位分析和综合滤波器，从而可以构造一维LP-NPR滤波器组；然后利用树状结构来结合两个一维LP-NPR滤波器组，并运用单位模变换，可以得到二维不可分离LP-NPR滤波器组。

A respectable-looking middle-class woman carried a plank with a nail sticking out of it; a young woman in a colourful, patterned top and white diamante mules clutched a piece of metal pipe.

一个体面的前瞻性中产阶级女性进行了一块木板钉伸出它；一名年轻女子在色彩缤纷，图案的上方，白迪亚曼特骡子抓住一块金属管。

PRETTY RICKY LYRICS "Your Body" Yes sir Yes sir Yes sir Yes sir I got new shoes on the ride Rollin' down 95 And you can see in my eyes That I'm lookin for a cutiepie And we ain't gotta make love And we can just cuddle up But if she want me to beat it up Then dammit, I'll beat it up I don't know why, but the ladies call ol' baby blue the sticker They take me and rape me and make me they victim I lick em and freak 'em if they married I see ya If they look like wifey material, then I keep 'em Stuntin' through the city tryin' to find a lady who Beautiful, but she gotta have booty too Baby blue gonna let you do what you wanna do You can feel on it if you really want to Get a taste of the salami knock knock knock knock you down like a tsunami bust in you like atomi-ee I'mma ahead of my class gettin' head in the jag look in the duffle bag see benjamin heads on the cash I got new shoes on the ride Rollin' down 95 And you can see in my eyes That I'm lookin for a cutiepie And we ain't gotta make love And we can just cuddle up But if she want me to beat it up Then dammit, I'll beat it up Top down blue star tag Ol' master bear skin rugs in the jag Spectac with the bad chick in the back tryin ta beat it up like an Everlast punching bag hotter than a bisquick biscuit out the oven your baby mama go on missions to get this lovin we kissin and huggin she never pick her phone up You be lookin for her while we doin the grown up she complain when she catch back spasms, but she love when she get the back to back orgasms yes sir, the game is automatic, give it to 'em one time They come back like addicts.

漂亮祥歌词"你的身体"不错不错先生先生不错不错先生先生我有新鞋就骑滚动'下来95 ，你可以看到我的眼睛，我lookin 一cutiepie ，我们并不推荐做爱，大家只能偎，但如果她要我打起来，然后dammit ，我会打起来：我不知道为什么，但是各位请职的婴儿蓝的贴纸，他们带我和强奸我，使我对他们的受害者我舔EM和怪物'电磁如果他们结婚，我看亚若看起来好像wifey材料，钍恩，我保持'电磁stuntin '通过市tryin '找一位美丽，卜笔，她所推荐的战利品太婴儿蓝gonna让你做你想做的事，你可以感受到它如果你真的想要有品味的萨拉米敲叩敲你敲下来像李元簇纳米胸像你像原子- 41 i'mma提前班上极少'头军法看在达夫尔袋本杰明见首长的现金我有新鞋就骑滚动'下来95 ，你可以看到我的眼睛，我lookin一个cutiepie ，我们爱 1982推荐做爱，大家只能偎，但如果她想我会在它上升 dammit话，我会它击败了由上而下蓝星标签醇'师父紧皮肤地毯在军法萃取受检者与坏鸡的背部tryin电讯拍起来像一个everlast出气筒炎热比之二快速饼干出烤箱婴儿你妈妈去出差要想让这个lovin我们基辛和1001-1560她氮以往接她的电话了，你能lookin她虽然我们doin的长大，她抱怨，当她三曲线回痉挛，但她的爱，当她得到背靠背高潮不错先生， 77 饰物是自动的，它给予『电磁一次他们回来一样上瘾。

Gut Wiesenhof is a historical manor house with outbuildings and grounds, for the renovation of which the Hartge brothers have been awarded a prize for the preservation of a historical monument. The house and outbuildings are idyllically situated in 25,000 square metres of parkland close to the borders of Germany, France and Luxembourg. Gut Wiesenhof is first mentioned in the chronicles in 1835. Following the completion of his model farm, the original owner, Baron Constantin von Briesen, began to breedthoroughbred horses. Today, the historical outbuildings house engine test benches, an electronics laboratory and– last but not least – powerful, tuned Mercedes-Benz cars. A multifarious range that stretches from the A to the S Class.

Gut Wiesenhof是一个具有历史的庄园它有着谷仓和场地 Hartge很好的在革新公司的过程中保护好了这些历史遗产也由此获得过褒奖从房子到外屋坐落在了这个25，000平方米的草木区他也靠近了德国法国和卢森堡的交界处 Gut Wiesenhof历史上第一次被提及还是在1835年在房子建成之后房主人Baron Constantin von Briesen开始在这里饲养和训练马匹今天这一个历史性的外屋变成了引擎测试电子实验室和最终但不是最少的具有动力的Mercedes Benz改装车各类车系从A Klass 到S Klass

A procedure consisting of a finite set of unambiguous rules which specify a finite sequence of operations that provides the solution to a problem,or to a specific class of problems,is called an algorithm.

若一过程由无歧义的规则的有限集合组成，这些规则规定了解决某个问题或某类特定问题的操作的有限序列，该过程就叫算法。

A procedure consisting of a finite set of unambiguous riles which specify a finite sequence of operations that provides the solution to a problem,or to a specific class of problems,is called an algorithm.

若一过程由一明确规则的有限集合组成，这些规则规定了解决某个问题或某类特定问题集的操作的有限序列，该过程就叫算法。

A cross between a captain's uniform and a first-class passenger's travel outfit, it had a kind of jet-set practicality—a mix of sportif and utilitarian that carried through to other looks, including a ribbed knit tunic dress, a sequin baseball jacket worn with skinny jeans and a matching cap, and a cargo skirt topped by the familiar Chanel tweed jacket in army green.

两岸之间的船长的制服和一个一流乘客的旅行装备，它有一个种射流集实用性-混合sportif和功利的进行，通过其他的外表，包括带肋针织外衣穿着，亮片棒球外套磨损与瘦牛仔裤和匹配的上限，以及货物裙突破所熟悉的夏奈尔花呢外套，在军队的绿色。

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。

Using Pell equations on A,we give a new proof of the well-known fact that ifthe ideal class number of a real quadratic function field K = k equals to 1,thenD must be P or QR, where P,Q,R∈A are monic and irreducible ,and Q,R have odddegrees.

二我们应用A上的Pell方程这一初等方法重新证明一个已知的结果：实二次函数域K = k理想类数为1时， D只能为P或QR，其中P，Q，R∈A首一不可约且Q，R次数为奇数。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。