单词：half-power beamwidth of antenna
单词：half-power beamwidth of antenna 相关文章
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
VOA标准英语2010年(三月)
不怕伤鸟：无扇叶涡轮风力发电机 Wind turbines are efficient sources of cheap energy but also a source of concern as their huge spinning blades frequently kill birds and bats. A new type of wind generator developed in Spain offers a crea
VOA双语新闻 2015年6月
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
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
原版英语小短文
DAMA - Stands for Demand-Assigned Multiple Access. This is a way to instantaneously assign telephony channels in a transponder according to the immediate traffic demands. Dash - This is the the charac
电信英语
Gain - This is an increase in signal power, due to a boost from an electronic device. Garbage - These are unwanted characters that appear because of either incorrect settings or noise. Gate - These ar
电信英语
Iron and Wine原名Samuel Beam。这家伙成名之前是一名佛罗里达州立大学的电影老师，其标志性的相貌特征就是一脸的大胡子。 There is light in my lady's house And there's none but some falling rain This like a spoke
金属
Bladeless Wind Generator Safe for Birds Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy. But they can also be deadly to birds and bats. The turbines large blades t
2015年VOA慢速英语(七)月
Bladeless Wind-Power Generator is Friendly to Birds 新型风力发电机避免误伤鸟类 Wind turbines are efficient sources of cheap energy but also a source of concern as their huge spinning blades frequently kill birds and bats. A new type of w
VOA标准英语2015年(六月)
新型风力发电机不会伤及鸟类 In 2002, Spanish inventor David Yanez saw a short film about the Tacoma Narrows Bridge in the U.S., collapsing in strong wind. 2002年西班牙发明家大卫亚尼斯看了一部关于强风造成美国塔科马
VOA标准英语2015年(十二月)
(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
2017年Scientific American(三)月
The Weekend - Funky Galaxy Battles (C0079) A: They are breaking through! Set your blasters to full power! B: Excellent job. Search the ship, shes gotta be in here somewhere... bring her to me! C: Lord Hater, we have a survivor here... B: Where is she
纯正地道美语
Imagine boarding a flight to Saturn, what would you need to know before traveling? The best ringside vantage points? The must-see moons? Think of this as your personal guide to the splendor of the Saturnian system. A wandering spot of light twice as
自然百科2012年
Well, if they're drones, they got to get their commands from somewhere, right? Yeah. 如果它们是无人机，那总得从某处获得指令吧。没错 I mean, it's most likely this base. 很可能就是这个基地了 Yeah, this big flyswatter-lo
陨落星辰第二季
First of all know this: youre valuable. We love you. Youre important to the business. Its just that, well, sometimes as an employee you can do things that get under our skin. Want some examples? OK, here are five. Yes, some may seem petty. But theyre
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常用手机英文和英文缩写： Front cover 手机盖 Display screen 屏幕 Battery status 电力状态 Antenna 天线 Receiver 受话听筒 Dial button 拨号键 Disconnect button 结束键 Keyboard 键盘 Star key 米字键 Pound key 井字键
英语口语
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
英美文化
Science and technology 科学技术 Solar power from space 太空太阳能 Beam it down, Scotty 老兄，传下来吧 Harvesting solar power in space, for use on Earth, comes a step closer to reality 在太空获取太阳能以供地球之用:梦想距
经济学人科技系列
It seems that even Apple is frustrated with the iPhones abbreviated battery life. 苹果似乎也对iPhone异常短的电池寿命感到挫败。 The Cupertino company on Tuesday joined a cadre of accessory makers and released a new battery case for
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A: They are breaking through! Set your blasters to full power! B: Excellent job. Search the ship, shes gotta be in here somewhere... bring her to me! C: Lord Hater, we have a survivor here... B: Where is she? Dont make me destroy you, tell me where s
英语播客-EnglishPod