单词：residual current device functionally dependent on line voltage
单词：residual current device functionally dependent on line voltage 相关文章
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用mp3背四级单词
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闭着眼睛飘单词 四级词汇
Could an Electric Current Stop Motion Sickness? 晕车能够提前预防,你相信吗？ Some people can get motion sickness from being in moving vehicles such as cars or airplanes. 有些人在快速移动的交通工具上会晕车，例如乘坐汽车
2015年VOA慢速英语(十二)月
Technophiles mobbed Apple stores in Europe and Asia on Friday to snatch the hottest gadget of the day - the iPad. Apple has sold more than a million of the small tablet computers since its U.S. launch last month, forcing the company to delay its inte
VOA标准英语2010年(五)月
1849 、 静摩擦 staticfriction 1850 、 颈轴承 journalbearing 1851 、 颈缩 necking 1852 、 频带宽度 bandwidth 1853 、 频率 frequency 1854 、 头座 headstock 1855 、 阈值；临界值
英文名句短语
Do you like working up a sweat? Or do you feel like maybe sweat should work for you? Well, hold on to your sudoriferous glands. Because researchers have designed a device that could someday produce power from your perspiration. The schvitzy scheme wa
2014年Scientific American(八)月
[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
美国英语听力80篇
You may not need to worry about batteries someday soon. A 15-year old girl, Ann Makosinski from Victoria, British Columbia, Canada has invented a flashlight that uses the heat from your hand for power. Instead of using batteries the flashlight uses P
轻松英文阅读
If you are like most people, you leave your laptop plugged in when you are near a plug. But according to the battery experts at Cadex Electronics (www.cadex.com) you shouldnt be doing that. They suggest unplugging it when it gets to an 80% charge and
轻松英文阅读
Section C Great Ideas Some of the most important inventions of the past 2,000 years may surprise you. Want to get rich? Become famous? You don't have to be a film star or a basketball player or a musi
新视野大学英语读写教程(1)
It must work without a hitch. 必须能够无故障运行。 It must work without a hitch. 必须能够无故障运行。 It has been tested for nine times. 我们已经对其进行了九次测试。 These elements seem to be working well under high
玩转商务英语900句
1429 、 电线 electricwire 1430 、 电线退皮钳 wirestripper 1431 、 电导率 electricalconductivity 1432 、 电导量 conductance 1433 、 电压 voltage 1434 、 电压比 voltageratio 1435
英文名句短语
China has long depended on coal-burning power plants to fuel its explosive growth over the past three decades. As a result, air pollution has risen to alarming levels in central and eastern regions. Policymakers have been working hard to shift the co
2017CRI中国国际广播电台
SAN FRANCISCO, Aug. 22 (Xinhua) -- Hewlett-Packard's tablet TouchPad has become the hottest consumer electronics device on Monday after HP launched a fire sale for the discontinued product line over the weekend. It was like a stampede and they went q
英语新闻
这部分尽可能简明扼要而又全面地介绍公司的情况，以及公司所在行业的信息。 市场环境，例如： The marketplace has been stagnant for 2 years. We are poised now to.。. 产品或服务，例如： The present stage
实用英语
LONDON, June 16 (Xinhua) -- Drillings and fillings at the dentist's are always dreadful and make tooth decay treatment very unpleasant. But British scientists have developed a new approach of fixing tooth decay, which could get rid of all the drillin
英语新闻
vacant a.空的；未被占用的 vain a.徒劳的；自负的 valid a.有效的；正当的 vapour n.汽，蒸气 variable a.易变的 n.变量 variety n.多样化；种类；变种 various a.各种各样
英文语法词汇
A: Hello, how can I help you today? A: 您好，今天我能帮您什么忙吗? B: I would like to open a Current Account, please. B: 我想开一个活期存款账户 A: OK, please fill in a Deposit Slip. All you need to do is to write the amount he
银行英语情景口语