嘟嘟200907
I. Overview Germany's Siemens (SIEMENS) produced PLC application in China are very wide, in metallurgy, chemical industry, printing production line applications in such areas. Siemens (SIEMENS) the company's PLC products include LOGO, S7-200, S7-300, S7-400, Industrial Networks, HMI human-machine interface, industrial software. Siemens S7 series PLC Small, fast, standardized, and has network communication capability, more powerful, more reliable. S7 Series PLC products can be divided into micro-PLC (such as the S7-200), small-scale performance requirements of the PLC (such as the S7-300) and in the high performance requirements of the PLC (such as the S7-400) and so on. 1. SIMATIC S7-200 PLC S7-200 PLC is the ultra-miniaturization PLC, it applies to all industries, all kinds of occasions, the automatic detection, monitoring and control. S7-200 PLC's power to run both stand-alone, or even into a network able to implement complex control functions
挑剔宝宝
Along with our country socialist market economy system establishment, the demographic dividend period ends, the long-term basic state policy of family planning and population aged the arrival of the times, social security problem in our country has been put on the agenda. Early in the middle of the last century, the western countries, especially in Germany led to the Western European countries have embarked on a different with traditional capitalist mode is different from Soviet Socialist Model of economic system -- the social market economy system, its important characteristic is one of the establishment of "from cradle to grave" social security system and complete social welfare system. Western social welfare system in recent seventy years, play the positive role in the show, its malpractice also day by day. These can be for our country to establish a socialist market economy, new social security system provides valuable lessons. This article from the western mode of social market economy, western welfare system overview and western welfare system and other aspects of the impact of social welfare system in Western Europe, then talk about the enlightenment to our country.
论文摘要的定义 摘要一般应说明研究工作目的、实验方法、结果和最终结论等.而重点是结果和结论。中文摘要一般不宜超过300字,外文摘要不宜超过250个实词。 论文摘
In recent years autonomous regions road traffic career has been a rapid developm
Abstract:In summing up the previous research papers on the basis of information
毕业论文英文摘要是对毕业论文研究内容、方法、结果和结论的简要概括,通常包括以下几个部分:1. 研究背景:简要介绍研究领域的背景和相关研究现状,说明本研究的意义和
[ Abstract ] in recent years, with the development of science and technology and