In this paper, on the base of paraxial approximations, we present a set of absorbing boundary conditions of 3D elastic wave equations and apply to the 3D elastic wave numerical modeling in isotropic medium.

本文基於傍軸近似法提出了計(jì)算三維彈性波方程的吸收邊界條件公式，表示了各邊界面、邊棱和角點(diǎn)處波場(chǎng)所滿足的單程波方程激情性爱在线观看，并在三維彈性波數(shù)值模擬中進(jìn)行了應(yīng)用日韩精品合集第一页免费观看。

Using the substitution-elimination method affine algebraic variety can be resolved to pure d-dimensional subvariety and expressed by an algebraic hypersurface on d+1-dimensional space with a sequence of elimination-polynomial systems. All 0-dimensional solution can be found, too.

利用變換消元法可以把代數(shù)簇分解成純d維的子簇欧美国产综合，并把代數(shù)簇表示為d+1維子空間上的超曲面形式和一系列的消元多項(xiàng)式組国产精品免费-区二区三区，且能求出全部孤立解，同時(shí)給出了算法及其在多項(xiàng)式因式分解中的應(yīng)用美女隐私都位无遮挡的网站。

We posed the concept of sufficient intersection about s(1≤s≤n) algebraic hypersurfaces in n-dimensional space and proved the dimension of polynomial space Pm(which denotes the space of all multivariate polynomials of total degree≤m) on the algebraic manifold S=s(f1,…, fs) where f1(X=0,…, f s=0denote s algebraic hypersurfaces of sufficient intersection, then gave a convenient expression for dimension calculation by using the backw ard difference operator.

給出了n維空間中s(1≤s≤n)個(gè)代數(shù)超曲面充分相交的概念亚洲天堂AV网站，證明了n元m次多項(xiàng)式空間Pm在充分相交的代數(shù)流形S=s(f1，…国产啊V在线视频免费观看， fs)（f1=0操逼欧美黄色，…， fs=0表示s個(gè)代數(shù)超曲面）上的維數(shù)欧美性生活视频高清在线，并利用倒差分算子給出一個(gè)方便計(jì)算的表達(dá)式91系列在线观看免费；構(gòu)造了沿代數(shù)流形上插值適定結(jié)點(diǎn)組的疊加插值法；證明了在充分相交的代數(shù)流形上任意次插值適定結(jié)點(diǎn)組的存在性欧美页；給出代數(shù)流形上插值適定結(jié)點(diǎn)組的性質(zhì)和判定條件美女脱了内裤打开腿让人桶。

Some members of the Working Party expressed concern about a conformity assessment procedure known as Statutory Inspection, which was described, inter alia, in Articles 4, 5, and 6 of the Law and Articles 4, 5, and 9 of the Implementing Regulations.

一些工作組成員對(duì)被稱為"法定檢驗(yàn)"的合格評(píng)定程序表示關(guān)注，法定檢驗(yàn)的表述主要在《商檢法》第4老女人特黄毛片高清视频、5和6條和《實(shí)施細(xì)則》第4摸人人操人人人、5和9條中。

The relation of the chromatographic retention indices of alkene to topological index,double bond atomic hybridization state index,polarizability effect index of branched chain to double bond atomic,immobile liquid polarity values and column temperatureat different temperatures on different stationary phases was studied.

通過對(duì)部分烯烴在不同固定相不同柱溫下的1031個(gè)樣本集的氣相色譜保留指數(shù)值與其部分參數(shù)關(guān)系的研究A级野外黄色网，發(fā)現(xiàn)RI與拓?fù)渲笖?shù)jiujiure、雙鍵原子雜化狀態(tài)指數(shù)、支鏈對(duì)雙鍵的極化效應(yīng)指數(shù)欧美日韩图自拍图片在线观看、固定液極性值及柱溫的關(guān)系可表示為：^RI=-58.138+57.7460Q-8.2591Q+0.120T+0.807CP+36.460PBD+7.919DHSI(R=0.9989)繼以留一法(Leave-one-out国产午夜天堂免费观看AV，LOO)進(jìn)行交互檢驗(yàn)，相關(guān)系數(shù)RCV=0.9977日韩性色自拍视频网站在线播放，說明所建模型具有良好的穩(wěn)定性和預(yù)測(cè)能力A吖在线视频，較好地揭示了烯烴類化合物氣相色譜保留指數(shù)RI隨固定相極性、柱溫的改變而變化的規(guī)律

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采用Seldinger法插入導(dǎo)管鞘后欧美农村A片视频在线看，用帶Balt可脫球囊的magic-BD導(dǎo)管透視下經(jīng)導(dǎo)引管送達(dá)瘺口水平，當(dāng)球囊突然"低頭"或改變方向時(shí)一级作爱片免费，表示球囊已通過瘺口日韩国产欧美，進(jìn)入海綿竇。以等滲造影劑交換氣體后充盈球囊至雜音消失日本高清中文在线最多播放，造影證實(shí)瘺閉塞完全狼友视屏在线，并保持頸動(dòng)脈通暢。

Barre hoped that Franco-Chinese relations would achieve further development and strengthening, and also expressed that France, using its dominant position, was willing to more actively participate in the economic build-up of China.

巴爾希望法中關(guān)系能夠得到進(jìn)一步發(fā)展和加強(qiáng)久久精品国产品国产精，并表示法國愿以自己的優(yōu)勢(shì)更加積極地參與中國的經(jīng)濟(jì)建設(shè)国产白白视频在线观看。

For the beam buckling problem, this paper presents the Barycentric Lagrange interpolation collocation method to get the differentiation Matrix of unknown function.

采用重心Lagrange插值多項(xiàng)式建立未知函數(shù)的微分矩陣，采用配點(diǎn)法將梁的控制方程表示為代數(shù)方程組。

It originated from Roman law, but France Civil Law and German Common Law hadn't formed perfect mistake system. In the mid 19 century, Saviny advanced a mistake theory of declaration of intention. It unresolved the mistake problem, but met with Ihering, Bekker and Zitelmann's criticism.

它淵源于羅馬法免费看的黄色网站在线观看，但法國民法国产黄色视频天天、德國普通法尚未形成完善的錯(cuò)誤制度。19世紀(jì)中期薩維尼提出意思表示錯(cuò)誤理論网友自拍露脸日韩视频在线播放，也未能解決錯(cuò)誤問題色哟哟网站进入方法，且遭到耶林、貝爾的批判http曰本wwwcom。

If we want to force either scientific or fixed notation, we can do so by using the appropriate manipulator: The scientific manipulator changes the stream to use scientific notation.

如果希望強(qiáng)制科學(xué)記數(shù)法或固定位數(shù)小數(shù)表示在线视频免费91，可以通過使用適當(dāng)?shù)牟倏v符做到這一點(diǎn)： scientific 操縱符將流變?yōu)槭褂每茖W(xué)記數(shù)法。