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SHORT CIRCUIT CURRENT LIMITER IN AC NETWORK 总被引:13,自引:0,他引:13
INTRODUCTIONShortcircuitinpowersystemsisaseriousfault,whichmaydamagetheequipmentinthesystem .Itrequirestheprotectionsystemtoswitchofftheveryhighleveloffaultcurrent.Thetraditionalmethodtolimittheshortcircuitcurrentlevelistoseriallyconnectalimitingre act… 相似文献
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As emphasis on intensive educational training increases, effective gerontological curricula and content planning to assure learner satisfaction are becoming more important. This article considers four key variables related to learner satisfaction: class size, seating arrangement, training methods, and participant motivation. Six guidelines for increased training effectiveness are suggested: preassessed and structured environment, planned group size to serve content and objectives, seating arrangements, discussion group utilization, preassessed learner attitudes, and continuous evaluation with necessary restructuring. 相似文献
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Margaret Kain Benton 《作文大王》2002,(24)
During the 1920s,Dad worked hard tosupport our family, but there was very littlemoney left over. One day,I noticed the sole was almost off one of his shoes and he was putting a cardboard in its place so he could go to work. After he went to bed that night, I quickly took his shoes and went out to the 相似文献
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全新单曲《伏笔》是继2011年白色情人节《我终于成了别人的女人》后,薛之谦再度以单曲形式推出的音乐作品,这首歌曲邀请了刚刚为那英《那又怎样》创作了同名主打歌的音乐人郭顶特别为薛之谦置身打造的都市情歌, 相似文献
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第N次见到君君、薛之谦,感觉一如以往地青春洋溢。薛之谦距离上一次见面时,话题多了,说笑话时还常常被身旁的经纪人提醒“要保持形象”;君君本是个安静的小孩,如果没有薛之谦在场,会独自在一旁自我打量……和他们聊了一些关于情绪的词,因为他们出版的青春自传《谦君一发》,写了很多自己心情的回忆,也因为情绪让他们说出了最真实的自己。 相似文献
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杨贤志 《语数外学习(初中版)》2000,(1):119-120
答案与分析:布朗先生将外出一个星期,临行前教诲其子如何待客,并将那些话写在纸上以加深他儿子的印象。四天过去了,其子见无人登门造访,便将纸条烧了。第五天下午,有位男士来找布朗先生。布朗先生的儿子想起纸已成灰,便突兀地答道:“不在了。”那个男子误认为布朗先生去世了,颇感奇怪。布朗先生的儿子又补充一句:“昨晚烧的。” 相似文献
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结束了电影《一只狗的大学时光》的拍摄.薛之谦又奔波在了世博会以及其他活动的现场。舞台上光彩照人的薛之谦,私底下坦言其实他是一个十分普通且没有情调的人.就让我们一起解读薛之谦不为人知的非常关“谦”字。 相似文献
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冬天里寒冷的一天,一只狐狸告诉熊妈妈他能教她怎样钓鱼。熊妈妈想学,狐狸就把她带到一个冰窟窿旁,告诉她把尾巴放进水里。On a cold winter day,a fox told MotherBear that he would teach her how to fish.Asshe wanted to learn,he took her to a hole inthe ice,and told 相似文献
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冬天里寒冷的一天,一只狐狸告诉熊妈妈他能教她怎样钓鱼。熊妈妈想学,狐狸就把她带到一个冰窟窿旁,告诉她把尾巴放进水里。 相似文献
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1.A:Somebody is knocking;go and see who it is.B:Yes,sir (ma'am).2.C:Is Mr.Brown at home? (or...your father,mother,brother,sister,etc.)E:Yes,sir.Please come in.(or:Come thisway,please.)or:B:I'm sorry to say he's out.(or:Sorry to sayhe's not at home.or:Sorry to say he's just 相似文献
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Short answers are used when you agree with the speaker. EXAMPLE: SpeakerA: I love coffee. SpeakerB:(So do I.I do as well.Me too.)possible answers SpeakerA: I don't like chicken. SpeakerB:Neither do I.I don't either.Me too.Me neither.)possible answers 相似文献