天线噪声温度

12. Stop the Noise Mr. Chen is talking to his neighbor Mrs. Wang. C: May I have a word with you? W: Sure. What's the problem? C: It's about your son. I'm tired of his making so much noise at all hours

发表于:2018-11-27 / 阅读(432) / 评论(0) 分类 赖世雄中级美国英语

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

发表于:2018-12-01 / 阅读(225) / 评论(0) 分类 新东方背诵文选

Researchers find circadian clock in Monarch's antenna plays a major role in navigation Shelley Schlender | Michoacn, Mexico 22 March 2010 Scientists believe antennas are critical to the navigation of the Monarch butterfly. Related Links Monarch Watch

发表于:2018-12-16 / 阅读(98) / 评论(0) 分类 VOA标准英语2010年(三月)

Lesson 156 Part Ⅰ Warming-up Exercises Spot Dictation: The Temperature Check Last winter we had kind of a, uh, cold winter and I was home in bed _____ one night and listening _____ my radio. And, uh

发表于:2018-12-27 / 阅读(70) / 评论(0) 分类 英语听力入门 (全四册)

There is of course a great deal we don't know, and much of what we think we know we haven't known, or thought we've known, for long. Even the notion of the Big Bang is quite a recent one. 当然,有大量的事情我们不知道,还有大量的事情

发表于:2019-01-01 / 阅读(52) / 评论(0) 分类 万物简史

Brian didnt have cable TV. He didnt have satellite TV. He had an antenna for his TV. He had an indoor antenna. But it was an old antenna. The reception was bad. He needed to buy a new antenna. He went to Best Buy. The antennas were in boxes. He looke

发表于:2019-01-02 / 阅读(116) / 评论(0) 分类 简单慢速英语阅读

Brian didn't have cable TV. He didn't have satellite TV. He had an antenna for his TV. He had an indoor antenna. But it was an old antenna. The reception was bad. He needed to buy a new antenna. He went to Best Buy. The antennas were in boxes. He loo

发表于:2019-01-02 / 阅读(100) / 评论(0) 分类 原版英语小短文

Ground - Connecting the Earth to electrical equipment with a conductor. This is done so current overloads (perhaps due to a lightning strike) can be safely diverted to the Earth. Ground Fault Circuit

发表于:2019-01-03 / 阅读(81) / 评论(0) 分类 电信英语

Wherever I drove my old car over 55 miles per hour ,it vibrated terribly, so I decided to sell it. My first customer wanted to buy the car, and I battled with my conscience over whether or not to tell

发表于:2019-01-03 / 阅读(229) / 评论(0) 分类 英汉幽默故事选读

Noise is everywhere. I bet there isnt a place on Earth where you cant hear anything. I live in the city, so noise is everywhere. Sometimes it gets to me. I really want to have a button to turn it off. Its amazing how much noise there is around us. We

发表于:2019-01-05 / 阅读(60) / 评论(0) 分类 纯正英语一分钟

It was the first day of school. As the principal made his rounds, he heard a terriblecommotion coming from one of the classrooms. He rushed in and spotted one boy, taller than the others, who seemed to be making the most noise. He seized the lad, dra

发表于:2019-01-05 / 阅读(99) / 评论(0) 分类 趣味英语

英文歌词: It's easy to feel like You're all alone To feel like nobody knows The great that you are The good that's inside you Is trying so hard to break through[00:29.91]Maybe it's your time to lift off and fly You won't know if you never try I will

发表于:2019-01-05 / 阅读(151) / 评论(0) 分类 音乐咖啡厅

Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of

发表于:2019-01-11 / 阅读(115) / 评论(0) 分类 英语杂谈

(Probably Not a) Giant Alien Antenna强大的外星人光束 The Earth is studded with telescopes, listening for electromagnetic radiation from the great beyond. And a decade ago, astronomers stumbled upon a mysterious signal: a powerful pulse of rad

发表于:2019-01-20 / 阅读(111) / 评论(0) 分类 2017年Scientific American(三)月

Finance and Economics;Noise pollution: Shhh! 财经;噪音污染:嘘! Why quiet carriages don't work, and how they might be made to 让车厢安静缘何行不通,如何才能静下来? Quiet carriages on trains are a nice idea: traveller

发表于:2019-01-27 / 阅读(96) / 评论(0) 分类 经济学人财经系列

> 28 世界卫生组织关于噪音污染的报道 DATE=3-29-01 TITLE=SCIENCE REPORT - WHO Report on Noise BYLINE=Caty Weaver Start at 59

发表于:2019-01-30 / 阅读(92) / 评论(0) 分类 科技之光

I am primary school now, this is my second year, in order to focus more on my study, I live in school now, I will go home on the weekend. Our school is under construction lately, the workers are doing their work in the daytime, the machines make out

发表于:2019-02-02 / 阅读(78) / 评论(0) 分类 英语作文

The Giants SecretLong ago there was a king who had a very brave son. One day the son told his father, Father, I am going to roam the world in search of adventures.The king did not want to grant his son permission to do so, but the prince insisted so

发表于:2019-02-08 / 阅读(116) / 评论(0) 分类 英美文化

Chances are youve heard or rather, not heard the effects of a noise gate, but unless youre into audio engineering, you probably didnt realize it. Ever been at a concert or listen to a radio broadcast where it sounds great when theres music playing or

发表于:2019-02-18 / 阅读(150) / 评论(0) 分类 阅读空间

PARIS, Aug. 19 (Xinhua) -- Marine scientists and representatives from the private sector and military establishments would meet at UNESCO at the end of this month to measure noise's impact on marine life, the Paris-based UN scientific branch UNESCO s

发表于:2019-02-18 / 阅读(76) / 评论(0) 分类 英语新闻
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