[电] 交变量的整流值

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发表于:2018-12-05 / 阅读(288) / 评论(0)

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[00:05.20]Nikola Tesla developed the alternating current power system that provides electricity in the United States. [00:14.42]Many of his other discoveries led to electronic inventions for which other scientists were honored. [00:22.75]Mister Tesla

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坚持不懈，直到成功。我们每天的奋斗就像对参天大树的一次砍击，头几刀可能了无痕迹。每一击看似微不足道，然而，累积起来，巨树终会倒下。这恰

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影片对白 Sucre: There are three things for certain in life---death, taxes and count. Only way to stop count is... Michael: What? Sucre: Never mind. It's a bad idea. Michael: Worse than the idea of losing Maricruz? Sucre: A lockdown. We get Gen Pop l

发表于:2019-01-03 / 阅读(437) / 评论(0)

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发表于:2019-01-06 / 阅读(233) / 评论(0)

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The Rio Olympics organizing committee has apologized for the slightly inaccurate Chinese flag that has been used at several medal ceremonies and has pledged to correct the mistake, according to the Chinese Consulate-General in Rio on Aug. 8. 8月8日，

发表于:2019-01-06 / 阅读(123) / 评论(0)

英语新闻

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1. Heavy rain and flooding are still major threats for the next couple of days, as superstorm Sandy travels up the East Coast. At least 16 deaths are reported. Millions are without electricity. 2. First flood waters, then fire for an Oceanside neighb

发表于:2019-01-11 / 阅读(178) / 评论(0)

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1. A man and his seven children have been found dead in their home in Maryland. Authorities are investigating whether carbon monoxide-poisoning is to blame. Relatives say that the family had been using a generator for heat, after their electricity wa

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发表于:2019-01-12 / 阅读(109) / 评论(0)

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The Chinese government is pledging some 2 billion yuan worth of assistance in the rebuilding of Afghanistan. The commitment has been made during a meeting between Chinese President Xi Jinping and his Afghan counterpart Ashraf Ghani here in Beijing. T

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Dennis: Oh, why did I let my temper get the best of me ? I never should have said those things to the new client! Nora: Dont freak out . Im sure you didnt do any damage that cant be rectified . Its true that, in retrospect , you probably shouldnt hav

发表于:2019-01-20 / 阅读(124) / 评论(0)

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VALENCIA, Spain, March 23 (Xinhua) -- Valencia goalkeeper Diego Alves took the time to speak to Xinhua in an exclusive interview this week about his experiences at the side which currently lies third in the BBVA Primera Liga table. Alves, 26, joined

发表于:2019-02-02 / 阅读(138) / 评论(0)

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Power has been restored to nearly eighty percent of households in the epicenter of the quake. The quake cut off electricity in ten townships in Ludian County. By noon Tuesday, the Yunnan provincial electricity company have brought three 35-kilovolt t

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发表于:2019-02-06 / 阅读(129) / 评论(0)

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The third distinction is that animals make no improvements; 人类与动物的第三点差异在于：动物本身绝不存在任何改进或进步； while the knowledge, and skill, and the success of man are perpetually on the increase. 而人类知识

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Science and technology: Panda genetics 科技：熊猫遗传学 Hey dude. Give me six! 嘿，伙计。用六指击个掌吧！ Two strange mammals illuminate the process of natural selection. 两种不同的哺乳动物阐明自然选择的过程。

发表于:2019-02-16 / 阅读(171) / 评论(0)

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Here you go, Mr. Scott. Okay. 斯科特先生，给你。好 Oh, this must be really messing their heads up. 这个肯定能扰乱它们的攻势 The frequency's still locked in place. 频率还锁定在这个地方 How are you feeling? 你感觉怎样

发表于:2019-03-02 / 阅读(294) / 评论(0)

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