20xx推免研究生英語(yǔ)復(fù)試大綱-展示頁(yè)
2024-10-28 20:12本頁(yè)面
【正文】 oad range of frequencies, ranging from dc and radio frequencies up to the modes propagate along the interface with a dielectric, and they include an electromagnetic field coupled to the oscillations of conduction visible wavelengths, the mode that travels along a metal surface is called a surface plasmon（等離子體）.It is characterized by strongly enhanced fields at the interface, which decay exponentially with distance(on the order of 10 nanometers in the metal and 100 nanometers in the dielectric).However, in the microwave regime, metals can often be treated as nearperfect fields associated with surface waves at these frequencies penetrate 1 micron into the metal but extend many hundreds of wavelengths into the other words, this mode is not bound at the interface and is simply a surface ：導(dǎo)體能夠在很寬的頻帶支撐電磁表面波，從直流到射頻直到光頻。第一篇：2010推免研究生英語(yǔ)復(fù)試大綱2009年推免碩士研究生英語(yǔ)復(fù)試大綱一、考試目的：重點(diǎn)檢驗(yàn)考生基本詞匯、閱讀理解、段落翻譯等方面的英語(yǔ)能力。二、考試要求：；，能夠準(zhǔn)確翻譯文章中的長(zhǎng)句和難句；。三、考試形式：將一段200字左右的英文翻譯中文，全卷滿分為100分，按所翻譯中文表達(dá)英文原意的準(zhǔn)確和通順程度進(jìn)行評(píng)分。這些模式沿著與介質(zhì)的交界面?zhèn)鞑?，包含了與導(dǎo)電電子振蕩相耦合的電磁場(chǎng)。它呈現(xiàn)出在交界面被強(qiáng)烈增強(qiáng)的場(chǎng)模式，并隨距離呈指數(shù)衰減(在金屬里有10納米量級(jí)，介質(zhì)里有100納米量級(jí))。在這一頻段，與表面波相聯(lián)系的場(chǎng)能夠穿透金屬一微米，卻擴(kuò)展到介質(zhì)內(nèi)達(dá)到數(shù)百個(gè)波長(zhǎng)。第二篇：推免研究生自我介紹英語(yǔ)Honorable professors, Good morning/afternoon,:my name isbaoxuejiao, 23 years old, and sephieya is my English am openminded, easy to adapt, patible with my friends, and willing to help my spare time, I like reading books, collecting cards and coins, playing volleyball, municating with friends, and so my family, there are foremembers, my farther, my mother, my brother and parents are workers, my father works very hard, and he is always fully occupied, so most of the housework is done by my mother, of course, while I am at home, I would help brother is a graduate love my parents and they love me, my preparation for graduate examination, the support from my family is always my ’ love is unselfish。I am deeply affected, so I will do all what I can to repay your hometownMy hometown is XX, a young city in XX is famous for its XX and are great scenes here, XX, XX, XX, and so year, many people e here for tour and I believe that, with the joint efforts of every person, a better future of XX is ing(round the corner).Introduce your reason for preparing the postgraduate examDuring the past four years, I have learned a lot of professional knowledge and practical skills, but gradually, I realize it is not my op
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