单词：active antennas
单词：active antennas 相关文章
万圣节就快要到了，哈皮和毛拉的万圣节，他们是怎么过的呢，穿着奇异的服装，去邻居家里要糖果，是不是很有趣呢？ Harp: So, Halloween is celebrated on October thirty first (31st). Always the same day rega
话匣子英语
DEVELOPMENT REPORT - A WiLD Idea: Wireless Long-Distance Internet for Rural Poor By Jill Moss / Broadcast: Sun, 18 Nov 2007 16:00:00 UTC Eric Brewer at his Berkeley Intel Research Laboratory This is the VOA Special English Development Report. Eric B
VOA慢速英语2007年（十一）月
A bit of good news for residents of Louisiana's Atchafalaya Basin this afternoon: Flood level projections have been lower slightly. But as NPR's Greg Allen reports from Baton Rouge, people who live along the Mississippi River and its bayous are begin
2011年NPR美国国家公共电台5月
This is Scientific Americans 60-Second Science. I am Adam Hinterthuer. Got a minute? Earlier this month, NASA announced that an MIT Physics professor will lead a team of scientists on a new mission. The objective: build a giant radio telescope on the
Scientific American(二)月
Terrestrial Microwave Radio Terrestrial microwave radio is a transmission systems consisting of at least two radio transmitter/receivers (transceivers) connected to high gain antennas (directional ant
电信英语
Analog - Transmitting information that is characterized by continuously variable quantities (such as with AM or FM). This is different from digital transmission, which is characterized by discrete bit
电信英语
B-Mac - This is a method of transmitting and scrambling television signals; the are time-multiplexed with a digital burst that contains digitized sound, video synchronizing, authorization, or informat
电信英语
US space agency NASA has successfully located India's first lunar spacecraft Chandrayaan-1 that lost contact with ground controllers on Earth eight years ago. 日前，美国航天局NASA已经成功定位到印度首艘月球太空船--月球飞船一
英语新闻
Bugs 虫子 What are bugs? Bugs usually have thick skin. 什么是虫子？它们通常有厚厚的外壳。 There are many kinds of bugs. 虫子有很多种。 Some bugs have body parts. 有些虫子有身体部位。 For example, antibodies have th
与美国小学生一起学英文第10册
Antenna 天线 An antenna is used for radio, television, radar and so on. 天线用于广播、电视、雷达等等。 It works in air and under the water. 它适用于空中和水下。 Antennas send signals and receive signals. 天线发送和接收
与美国小学生一起学英文第4册
LONDON, July 4 (Xinhua) -- Anders Fogh Rasmussen, Secretary General of the North Atlantic Treaty Organization (NATO) expressed his hope on Wednesday that NATO would seek a more active dialogue with China. We must expand the range of nations with whom
英语新闻
SEOUL, Nov. 8 (Xinhua) -- Samsung Electronics, the world's largest flat screen TV vendor, said Tuesday that it has suspended its plan to develop active shutter three-dimensional (3D) TVs with RealD, the U.S.-based 3D technology supplier. Samsung has
英语新闻
AS much as we love our digital devices, many of us have an uneasy sense that they are destroying our attention spans. We skitter from app to app, seldom alighting for long. Our ability to concentrate is shot, right? 我们喜爱我们的数码设备，
阅读空间
> 11 关于使用蜂窝式电话安全性的研究 DATE=3-8-01 TITLE=SCIENCE REPORT - Largest Cell Phone Study BYLINE=George Grow ( Start at 59
科技之光
加拿大研究人员开发雷达隐身衣 TORONTO, Nov. 25 (Xinhua) --- Witches and magic may not exist, but Harry Potter's invisibility cloak certainly does. A pair of researchers in the Canadian city of Toronto have developed their very own cloaki
英语新闻
今天我们要学的词是active duty。 Active duty, 现役的。星期一是美国阵亡将士纪念日。 My friend Jack is an active duty Army Captain who has deployed overseas three times, 我朋友杰克是现役陆军上尉，先后三次被派
英语每日一词
第一部分 阅读理解 (75分) Passage 1 CATV is a short way of saying
实用英语
8 Health Problems You May Encounter With Your Laptop and How to Solve Them Laptops due to their lightness, mobility and new facilities like WiFi, which allow people to use internet almost everywhere, have become an integral part of many people's life
阅读空间
Google is attempting to put itself at the centre of domestic wireless networks with a new smart router that promises to improve WiFi quality and security. 谷歌(Google)正力求让自己置身于家庭无线网络的中心。该公司发布了一款有
英语新闻
今天我们要学的词是old fashioned。 Old fashioned, 是老式，传统的意思。 Old fashioned values, 就是传统价值观。 She came from an old fashioned family, 她来自一个很传统的家庭。 The couple has an old fashioned mom a
英语每日一词