机电的

The purpose of this paper is the analysis、computation and dynamic equivalence of power system frequency dynamics as well as the designation and implementation of underfrequency load shedding scheme. Some important conclusions have been reached based on detail theoretical analyses and a large amount of calculation results.

本文采用理论分析和详细时域仿真相结合的方法研究了复杂扩展式多机电力系统中功率—频率动态过程的主要特点，讨论了频率动态过程的计算方法，解决了频率过程计算中的动态等值问题，同时对电力系统低频减载方案的设计和实施问题进行了深入的探讨。

It was discussed in the paper the basic electroluminescent theory of polymers as well as the current study and the development trend of electroluminescent polymers and, especially that of polyphenylene vinylene. On this basis, the relationship among structure, solubility and electroluminescent properties was studied.

本文在讨论了电致发光聚合物的基本发光原理并深入分析了国内外有机电致发光聚合物尤其是聚苯撑乙烯的研究现状与发展趋势的基础上，着重研究了PPV衍生物的结构与它的可溶性以及电致发光特性的关系。

The scales of our mangements: importing and exporting of goods and techniques(excepts the goods forbidden by the country,and the goods allowed selling should have the Lawful Seller License),development of rock products,sales,importing and exporting of steel,wholesaling and retailing of woods,chemical products,electronical machines, daily products,hardwares,textiles,garments, hats and shoes.

公司经营范围：商品及技术的进出口（国家禁止的除外，需许可经营的须凭法定的许可证经营），石材产品的开发，销售及进出口钢材、木材、化工产品机电产品、日用百货、五金交电、针纺织品、服装、鞋帽的批发与零售。

Common people raise consciousness of environmental protection. The prospect of green consumption and green products are becoming more and more capacious.

绿色船舶作为绿色产品的一种，不同于其他机电小产品，是一个复杂的动态的系统，所以对绿色船舶的研究也是一项复杂的系统工程，有其自身的特点和系统。

With mechanical and electrical products distributor Eastern Province following brands:"Foshan City, Guangdong Province Star Transmission Limited" mechanical CVT, Worm Gear reducer,-cycloid reducer, high-speed intermittent segmentation;"Zhejiang Province Speed Reducer Factory stars,"the WP, FC models of cast iron Worm Gear Reducer" Zhejiang Huangyan motor plant "the" new turbot "Lvqiao Motors, explosion-proof motor, frequency conversion electrical, brake motors; Nanjing-controlled motor Ltd."Control of the" Iron Motor, YCT speed electromagnetic motor, and other products.

万华机电同东省总代理的产品有如下品牌：&广东省佛山市星光传动有限公司&的机械无级变速器、蜗轮蜗杆减速机、摆线针轮减速机、高速间歇分割器；&浙江省恒星减速机厂&的WP、FC型号的铸铁蜗轮蜗杆减速机；&浙江黄岩电机厂&的&新菱&铝壳电机、防爆电机、变频电机、刹车电机；南京控特电机有限公司的&控达&铸铁电机、YCT电磁调速电机等产品。

In this paper is analyzed the necessity to develop and expand the yarn combing production and speed up the upgrade of yarn combed products in China,and detailed the technical features of E7/4、E7/5、E7/6、E62 and E72、E65、E75 model of combers introduced from Rieter,Swissland as well as the analysis of the comber produced by Shanghai General Textile Machinery Manufacturer.

分析了我国发展和扩大精梳生产、加快产品结构调整的必要性，详细介绍了引进较多的瑞士立达公司E7/4、E7/5、E7/6、E62以及E72、E65、E75等机型的技术特征，还对国内上海纺机总厂等制造的精梳机进行了分析，提出了我国发展精梳生产的几点意见，认为精梳技术应向机电一体化、自动化方向发展，采用多电动机同步传动技术，提高配件的材质、加工精度和装配精度，在稳定、可靠的基础上提高速度，才能有效地提高生产效率。

Starting in 2001 to become Japan's Jomo lubricants authorized dealers, Jin Ernian rapid development of companies doing business in Nantong, Taizhou, Yancheng three regions to establish a stable and reliable sales network, operating from a single variety of brand development for lubricants Jomo Multi-brand, the full range of lubricants, customer base from a single user of construction machinery to expand automobile and motorcycle users, is now being extended to the industrial and mining enterprises, especially my company to operate the various special grease, textile printing and dyeing by companies such as the Electrical and Mechanical Bearing Welcome, my company to operate the high purity of the mercury sold to all parts of the country.

从2001年开始成为日本矫马润滑油的授权经销商，近二年公司经营业务快速发展，在南通，泰州，盐城三地区建立了稳定可靠的销售网络，经营品种从单一品牌的矫马润滑油发展为多品牌，全系列润滑油，客户群从单一的工程机械用户扩展到汽车，摩托车用户，现正在向工矿企业延伸，尤其是我公司经营的各种特种润滑脂，深受纺织印染机电轴承等企业的欢迎，我公司经营的高纯汞销到了全国各地。

The independently designed and produced series ultrasonic aluminum wire press welder, series ultrasonic gold wire ball welding machine, series ultrasonic large wire press welding machine shows the outstanding talents and the meticulous pursuit of our engineers, and our professional standard and rich and rich experience in microelectronic welding technology, it also means the development milestone of domestic semiconductor component interior wire welding equipment.

深圳市创唯星自动化设备有限公司是一家专业从事半导体封装设备研发、制造和销售的高新技术企业。公司整合了伟天星精密机电、微迅自动化两公司的研发、制造、销售的菁英，成立了创唯星公司。我们自行研发、制造的系列超声波金丝球焊机、系列超声波铝丝压焊机、系列超声波粗铝丝压焊机、系列LED自动点胶机等设备，处於国内领先地位，加上我们的价值服务，得到了广大客户的肯定和大力推荐。

To winding engine systems like elevators, only after complete study of dynamics of mechanic-electric system including driving motors is done and advanced control technique is introduced, design of the winding system of minimum vibration can be done.

对于电梯类提升系统来说，只有对包含拖动电机在内的机电系统的动力学问题进行系统的研究，并结合引进现代先进的控制技术，才有可能使设计出的提升系统中的提升容器、提升钢丝绳以及提升机本身的振动达到最小。

NdFeB permanent magnets with high magnetic energy product, high application temperature and high corrosion resistance of Zhenghai Group are one of the important parts to directly drive the permanent magnetic wind motor sets.

正海集团自行设计制造了多条大型机电一体化生产线，应用于荫罩、永磁体等产品的生产，正海集团生产的高磁能积、高使用温度、高耐腐蚀性钕铁硼永磁体，是直接驱动永磁式风电机组的重要部件之一，正海集团在机械、自动化、永磁材料等领域的研发、设计和制造的专业人才达到150名，具备同风机制造企业进行合作的人才和原材料优势。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。