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PartⅡ,Applying the developed and extended direct algebraic methods that presented in recent years and based on the 2+1 dimensional variable separation solutions,abundant Jacobi elliptic function doubly periodic waves and periodic propagating wave patterns for many 2+1 dimensional nonlinear wave models are obtained,and in long wave limit solitary waves are derived as well.

第二部分，本文拓展和推广(来源：a2AB7aC论文网www.abclunwen.com)了新近发展的几种典型的直接代数方法和基于分离变量解的间接方法，获得多个2+1维非线性波动模型丰富的雅克比椭圆函数双周期波解和周期传播波模式，并得到长波极限情形下存在的非线性孤立波。

We develop and apply the Hirota bilinear-θfunction method,Jacobi elliptic function expansion method,linear superposition method and F-expansion method respectively to solve many 2+1 dimensional nonlinear wave models including 2+1 dimensional 2DsG equation,the coupled ZK equation,2+1 dimensional KdV equation,2+1 dimensional long wave short wave resonance interaction equation and 2+1 dimensional dispersive long wave equation,abundant Jacobi elliptic function doubly periodic solutions are derived.These solutions show various periodic wave shapes and special periodic characters.

发展和应用Hirota双线性-θ函数方法，雅克比椭圆函数展开法，线性叠加法，F-函数展开法等分别求解2+1维2DsG方程，耦合ZK方程，2+1维KdV方程，2+1维长波短波共振相互作用方程，2+1维色散长波方程，获得丰富的雅克比椭圆函数双周期波解，描述了一些周期波形态及周期特性。

We started with a powerful 12", long-excursion low frequency driver for abundant bass punch and accurate low midrange. Next we joined a high-resolution 1" HF driver for clarity and brilliance with a groundbreaking horn design, ensuring smooth frequency response and ultra-wide sound dispersion so you can move around the stage.

这款产品配有功率强大的 12 英寸长冲程低频驱动器，提供铿锵有力的低音和精准的中低频；高解析度 1 英寸高频驱动器和设计新颖的号筒，提供明亮通透的高音，确保平滑的频率响应和极大的声音扩散角度，使你能在舞台上自由跑动。

Lijiang has glaciers and magic scenery in Glacier Park in the snow mountain scenic spot; luxuriant cypresses and pines and picturesque scenery in Yushan Ping and Maoniu Ping; clean water and gorgeous scenery in Lugu Lake, a provincial development tourist area usually called the " Plateau Pearl "; as well as Laojun Mountain 99 Longtan Scenic Spot distributed with numerous natural lakes in mountains and forests, famous for its thick alpine vegetation; Qiangui Peak with beautiful scenery and unique flavor; Tiger Leaping Gorge famous as the deepest and steepest gorge; the first gulf stone drumlin endowed with magnificant and beautiful scenery; Liming mainly with Danxia landform spectacle; Baoshan Stone Town with important and dangerous landscape and unique flavor; harmonious and natural Lashi Sea National Level Protection Marsh with abundant bilogical resources; elegant and silent Heilongtan Jade Spring Park; and Wanduo camellia said to be the " First Branch on Yunling " and " Global First Tree "… etc.

雪山景区的冰川公园冰川林立、景色奇幻，云杉坪、牦牛坪苍松翠柏、风景如画；丽江还有碧水如镜，澄澈绮丽，素称"高原明珠"的省级开发旅游区泸沽湖；有以丰茂的高山植被闻名，在群山和森林中分布着众多天然湖泊的老君山九十九龙潭风景区和景色秀丽、韵味独特的千龟顶；有世界著名的最深最险的虎跳峡，气势雄浑，风景宜人的长江第一湾石鼓，以丹霞地貌奇观为主的黎明，地势险要、独具风情的宝山石头城等；还有生物资源丰富，一派和谐天然的拉市国家级保护湿地，清雅大气、幽深静谧的黑龙潭玉泉公园，号称被誉为"云岭第一枝"、"环球第一树"的万朵山茶……等等，众多各具特色的景区在丽江共同构成了一幅壮阔而优美的自然画卷。

Proteins are the most abundant macromolecules found within living cells, comprising 30%-70% of the cell dry weight.

蛋白质是活细胞中数量最丰富的大分子物质，占干细胞重的30％～70％。

Abundant technology and consummate qualities make the production talent showing itself in the field of dumbwaiter. Dongxu Elevator serves the clients perfectly at all times.

作为一家以品质取胜的企业，雄厚的技术力量和完美的品质使东旭电梯在国内杂物电梯领域中脱颖而出。

The Company as Dunlop Sen brand agent in China, has the abundant technical force and perfect after-sales service, you can make for you a comprehensive program of product design and installation and maintenance.

本公司作为乐普森品牌在中国的代理，拥有雄厚的技术力量和完善的售后服务，可以为您做全面的产品设计方案和安装维护。

Dongying sag is a dustpan shape one with very abundant oil and gas.

东营凹陷是一个含油气十分丰富的箕状断陷凹陷。

To attain the abundant production and early bearing, the stock must have the dwarfish.

为了实现早果、丰产，砧木必须具有明显的矮化性。

Abundant eclogite xenoliths are found in Mesozoic dioritic rocks from Xuzhou-Suzhou area, central China.

徐州－宿州地区中生代闪长质岩石中存在丰富的榴辉岩类捕虏体。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。