博世力士乐无轴控制系统在机组式凹版印刷机中的应用

在传统的机械设备中，只有一个动力源，是通过轴、曲轴、齿轮、凸轮、棘轮、皮带轮、曲柄连杆等机械机构把动力传递到机械负载端。尽管这些机械传动机构在机械设备中占有极其重要的地位，然而机械机构具有结构复杂、磨损、扭曲、缺乏柔性等明显的缺点。现代机械设备广泛使用伺服驱动技术，取消机械长轴，缩短机械传动链，采用多电机分部驱动方案。

轮毂带制动鼓总成装配后转动不畅的原因及对策

根据轮毂带制动鼓总成在桥上的装配关系,分别从结构干涉、同轴度误差、轴承预紧等几方面分析致使该总成装配后不能均匀轻便转动的原因,并给出了相关的鉴别方法。

无轴控制系统在机组式凹版印刷机中的应用

在传统的机械设备中，只有一个动力源，通过轴、曲轴、齿轮、凸轮、棘轮、皮带轮、曲柄连杆等机构把动力传递到机械负载端。尽管这些传动机构在机械设备中占有极其重要的地位，然而此类传动机构具有结构复杂、磨损、扭曲、缺乏柔性等明显的缺点。现代机械设备广泛使用伺服驱动技术，采用多电机分部驱动方案，取消机械长轴，缩短机械传动链。

On Translation of Animal Metaphors

Metaphors have been described as a central role of our cognitive apparatus. It is central to our understanding of how language, thought and discourse are structured. Animal metaphors as an important part of metaphors take advantage of the animals' characteristics to describe a person or a thing vividly and chiefly. Sometimes animal metaphors will give people a humorous and novel picture. In linguistics, it can fill in the vacancy in languages, and make the expression exact and visually. Metaphor is kind of figure of speech. The thesis analyzes the function and style of metaphor and discusses the metaphors' structure in grammar. How we understand the animal's meaning is the key to translate the animal metaphors. All the animal words have both denotative meanings and connotative meanings. In most cases, the animals connotative meanings are the same or similar. People usually have the same idea about the animals; therefore, even the people who do not know English can understand some animal metaphors However, due to his tory, religion, phonetics, geography, life style, aesthetics and social psychology, the animals' connotative meanings are different or even con trary. Facing these problems, how we translate the animal metaphors. I find four methods: adaptation, simile with explanation, paraphrase, and annotation. Adaptation is very efficient for the animal metaphors, which have counterpart in Chinese. Simile-with-explanation is the commonest method to translate animal metaphors, which are similar across the cultures easy to comprehend. Paraphrase is the last method to translate animal metaphors, and especially it can deal with any case that the animal metaphors are profound. Annotation is used to trans late animal metaphors in context, particularly in written English. Using the four methods, we can translate animal metaphors successfully. And while we are doing translation, we should understand English animals' name very well, and pay attention to the Chinese animals' meaning to make sure our readers understand the author's in tended meanings. The thesis consists of five parts. The first part of the thesis states the significance and necessity of topic, problems to be solved in the thesis, and the framework of the thesis. The second part is literature review. The third part analyzes the animal vocabulary's meanings. The fourth part gives four methods to do the animal metaphors translation. The conclusion part reviews the whole thesis and points out the weakness to be improved.

在华外资企业面临的机遇和挑战

自20世纪90年代后,全球各大跨国企业陆续进军中国,这对于中国经济发展具有很大的推动作用,解决了我国扩大出口、经济增长等很多问题。但是在华外资企业在发展的同时,也产生了很多负面影响,如挤压民族工业发展、形成垄断、环境污染、对国家经济安全造成威胁等。目前,我国投资环境发生了新的变化,势必会对在华外资企业的发展造成一定的影响,可谓是机遇与挑战并存。本文主要分析了我国投资环境发生的一些变化,以及在华外资企业在这些影响下面临的机遇和挑战,最后总结了未来外资企业在华的发展趋势。