Mathematics: Understands and applies basic and advanced properties of the concepts of geometry; Use the Pythagorean theorem and its converse and properties of special right triangles to solve mathematical and real-world problems; Understands the basic concepts of right triangle trigonometry (e.g., basic trigonometric ratios such as sine, cosine, and tangent); Uses trigonometric ratio methods to solve mathematical and real-world problems (e.g., determination of the angle of depression between two markers on a contour map with different elevations); Uses properties of and relationships among figures to solve mathematical and real-world problems e.g., uses the property that the sum of the angles in a quadrilateral is equal to 360 degrees to square up the frame for a building; uses understanding of arc, chord, tangents, and properties of circles to determine the radius given a circular edge of a circle without the center

數(shù)學：理解和應(yīng)用幾何概念的初級和高級特性色秀视频久久久；用畢德哥拉斯定理、逆定理以及特殊直角三角形性質(zhì)解決數(shù)學的和現(xiàn)實世界的問題日韩欧美综合乱伦；理解基本的直角三角形三角比在线播放视频国产自区；運用三角比方法解決數(shù)學的或現(xiàn)實的問題。（等高線圖上的兩個標記之間的俯角確定）運用形體之間的關(guān)系及其屬性解決數(shù)學的或現(xiàn)實的問題（利用四邊形內(nèi)角和等于360度來為建筑物框架取正黄片ftp，運用弧日韩一级操逼黄片，弦国产专区第一页，切線和圓的性質(zhì)確定缺少中心的一段圓弧的圓心

The Customs Clearance Management Integration of Yangtze River Delta is one of the countermeasures that the Customs adopts to break the barrier caused by the present setup of administrative and customs districts, integrate the management resources of port and inland customs by computerized means, and with business law-abiding governance

長三角區(qū)域通關(guān)管理一體化是海關(guān)通過打破目前行政區(qū)劃和海關(guān)關(guān)區(qū)設(shè)置造成的障礙，利用信息化手段欧美老妇爱操，有效整合口岸和內(nèi)地海關(guān)的管理資源狠狠cao青青青视频，以企業(yè)守法管理為導向，構(gòu)建虛擬大關(guān)區(qū)人人操人人干95，簡化海關(guān)手續(xù)久久偷拍九九99热，將企業(yè)通關(guān)成本降到最低，主動適應(yīng)長三角區(qū)域經(jīng)濟一體化發(fā)展趨勢的一種對策選擇aa性欧美老妇人性交免费网站。

The Customs Clearance Management Integration of Yangtze River Delta is one of the countermeasures that the Customs adopts to break the barrier caused by the present setup of administrative and customs districts, integrate the management resources of port and inland customs by computerized means, and with business law-abiding governance as the orientation, constitute a big virtual customs district so as to simplify customs procedures, minimize the customs clearance cost of the business and meet the needs of the regional economic integration of Yangtze River Delta.

長三角區(qū)域通關(guān)管理一體化是海關(guān)通過打破目前行政區(qū)劃和海關(guān)關(guān)區(qū)設(shè)置造成的障礙无码一级午夜久久福利精品，利用信息化手段，有效整合口岸和內(nèi)地海關(guān)的管理資源99久久无码午夜体验区，以企業(yè)守法管理為導向久久久精品一区二，構(gòu)建虛擬大關(guān)區(qū)，簡化海關(guān)手續(xù)91精品在线啪，將企業(yè)通關(guān)成本降到最低黄网毛片aaa黄网毛片，主動適應(yīng)長三角區(qū)域經(jīng)濟一體化發(fā)展趨勢的一種對策選擇。

Xu Xiangqian紅四軍commander, the military commander Choi Hung申熙15 and 28 Red Army commander, political commissar of the高敬亭their rate of force are stationed in the Triangle Hill, and fought a guerrilla; Sino-Japanese War and the Revolutionary War, Triangle Hill revolutionary base is an important position in southern, is the New Fourth Army and the guerrillas carried out the heart of the struggle against the enemy.

紅四軍軍長徐向前品爱网尤物视频、紅十五軍軍長蔡申熙和紅二十八軍軍長免费在线看a片网址、政委高敬亭各自均率部隊在三角山駐扎過，打過游擊久久综合激情综合五月丁香；抗日戰(zhàn)爭和革命戰(zhàn)爭時期91偷拍南宁老熟女合集，三角山是革命根據(jù)地南部的一個重要陣地，是新四軍和游擊隊開展對敵斗爭的腹地欧美性交配视。

ABSTRACT This paper summarizes our researches on two key techniques in curve and surface modeling-the geometric approximation techniques and the geometric interpolation techniques. The former includes three types of geometric approximation techniques: Hybrid polynomial approximation to rational curves and surfaces, offset curves and surfaces approximation, interval Bézier curves and surfaces approximation. The latter includes a series of algorithms for shape blending modeling: the MSI algorithm for shape blending between space polylines or trees, the MSI algorithm for shape blending between triangular meshes, and skeleton-based shape blending algorithms using triangular decomposition and star-shape decomposition.

本文是作者對曲線曲面造型中兩類核心技術(shù)幾何逼近技術(shù)和幾何插值技術(shù)的研究成果的總結(jié)青草青在线视频，其中前者包括有理曲線曲面的Hybrid多項式逼近、等距曲線曲面逼近和區(qū)間曲線曲面逼近等三類幾何逼近方法日韩超清极品无码不卡视频；后者包括用于形狀混合造型的幾何插值方法的一系列算法：空間多邊形形狀混合的MSI插值算法欧美日韩在线视频免费观看、三角網(wǎng)格形狀混合的MSI插值算法、樹的形狀混合的MSI插值算法以及基于骨架樹形狀混合的三角剖分算法和星形剖分算法女人扒开腿让男人桶爽69视频。

The calculated results show: the ground state structures of PtNi5, Pt2Ni4 and Pt3Ni3 clusters are quadrangular bi-pyramid, and Pt4Ni2 and Pt5Ni clusters are triangular bi-pyramid with hat and triangular pyramid with quadrilateral, respectively. From the point of view of thermodynamics, PtnNim clusters are stable because of the negative enthalpy of formation; the positive NICS of PtNi5 clusters show anti-aromaticity, The negative NICS of Pt2Ni4 and Pt5Ni clusters show aromaticity. The number of the IR absorption peak of Pt3Ni3 is the most. The IR and raman absorption peak of PtNi5 , IR of Pt2Ni4, Raman of Pt3Ni3 and Pt4Ni2 have only one. The absorption peak of Pt5Ni appears in the bigger frequencies only, and is zero almost in the small frequencies.

研究結(jié)果表明：PtNi5日韩午夜福利免费一级网站免费、、Pt2Ni4www.色中射.com、Pt3Ni3團簇的基態(tài)結(jié)構(gòu)都為四角雙錐結(jié)構(gòu)国产www视频在线观看，Pt4Ni2 和Pt5Ni團簇的基態(tài)結(jié)構(gòu)分別是戴帽三角雙錐和三角錐戴四邊形結(jié)構(gòu)；PtnNim團簇的生成焓都為負值欧美影音先锋，表明團簇在熱力學上是穩(wěn)定的gogo人体艺术写真视频；由NICS值可得，PtNi5團簇具有反芳香性欧美性爱一级黄色网站，Pt2Ni4和Pt5Ni團簇具有芳香性亚洲无码免费；從光譜分析來看欧美成人大片在线，Pt3Ni3團簇的IR較強吸收峰的個數(shù)最多，PtNi5團簇的IR和Raman色婷婷五月天激情四射、Pt2Ni4團簇的IR国产99视频精品免视看9、Pt3Ni3和Pt4Ni2團簇的Raman只有一個強吸收峰值，Pt5Ni團簇的峰值只出現(xiàn)在頻率較大的位置aⅴ天堂欧美日韩国产，頻率小的位置幾乎為零日本巨乳在线。

The wing-edge and wing-patch data structure and fast searching method which combines the index rectangle with compass based normal vector are designed to speed the triangulation algorithm. Application in visualization of oil geological data and griding of mechanical part, the algorithm is efficient, steady and broad-spectrum. It can provide Delaunay triangular mesh for scientific computing and engineering analysis.

算法中采用了翼邊、翼面型數(shù)據(jù)結(jié)構(gòu)和自行設(shè)計的索引矩形與基于法矢的指南針法相結(jié)合的快速查詢法久久久久精品国产三级AL换脸，在石油地質(zhì)勘探數(shù)據(jù)場可視化和機械零件網(wǎng)格剖分中的應(yīng)用表明本文三角化算法具有高效自拍偷拍一区二区、穩(wěn)定、適用范圍廣的特點午夜福利导航，能夠為科學計算和工程分析提供邊界一致的Delaunay三角網(wǎng)格性屋视频在线。

As the MSA Information System and the MSA Information System have put in operation, this paper is try to design and plan the electronic maritime endorsement system in Yangtze River Delta, emphasizing on the connection of the different information system.In principle, the Yangtze River Delta maritime endorsement system is a long project .It should be divided into several stages and set different objects for each stage .

鑒于交通部海事局全面啟動和已部分實施&水監(jiān)信息系統(tǒng)一期&工程和&水監(jiān)信息系統(tǒng)二期&工程，本規(guī)劃和設(shè)計選定長三角地區(qū)船舶電子簽證系統(tǒng)規(guī)劃和設(shè)計作為課題色婷婷第一页，著力研究在長三角地區(qū)率先實現(xiàn)不同海事機構(gòu)簽證信息系統(tǒng)的聯(lián)網(wǎng)，從而使區(qū)域性海事一體化管理有了可能日本在线观看视频网站。

To improve the efficiency of Oxalis triangularis purpurea breeding, this study is done by leaf explant. 0.5 mg/L 6-BA and 0.5 mg/L NAA are added to the culture based on the last study. KT and 2,4-D concentrations impact on Oxalis triangularis purpurea regeneration system by "one-step method" are further studied.

為提高三角紫葉酢漿草的育苗效率一级啪啪啪免费视频，以三角紫葉酢漿草葉片為材料，在現(xiàn)有研究的基礎(chǔ)上真实国产激情在线观看网站视频，采用固定配比的6-BA(0.5mg/L)和NAA(0.5mg/L)国产精品欧美在线极品，研究了KT、2欧美日本高清在线不卡视频，4-D對&一步法&誘導三角紫葉酢漿草再生體系的影響亚洲色婷婷综合开心网。

On the geometric modeling, flat surface and curved surface are used to mesh and describe the model;on the electromagnetic modeling. Different basis functions( flat surface roof-top basis function, flat surface RWG basis function, curved surface roof-top basis function, curved surface RWG basis function) and different test functions (line-matching, Galerkin method) are applied to different cells(plat rectangle facet, triangular patch, Bezier patch, parametric surface, curved triangular patch etc.).

在幾何建模方面，分別采用平面元和曲面元對模型進行了剖分和擬合黄片AAAAA超黄片；在電磁建模方面两性激情综合网，針對不同的單元(平面元、平面三角元日老女人视频，亚洲三级电影网站、Bezier元、參數(shù)曲面亚洲,无码,乱伦、曲面三角元等)采用不同的基函數(shù)(平面roof-top基免费无码又爽又刺激高潮男男，平面RWG基，曲面roof-top基亚洲加勒比黑人一区二区，曲面RWG基)和不同的檢驗函數(shù)進行處理www18禁。