单词：electromotive force
[计] 电动势
electromotive force的用法和样例：
例句
- It is electromotive force that drives electrons through the circuit.是电动势驱使电子沿电路运动。
- The force constant and its associated back-EMF constant of a VCM can be highly nonlinear with the mechanical structure.在音圈马达中，由于其机械结构及磁路架构，力常数及反抗电动势常数呈现高度非线性之特性。
单词：electromotive force 相关文章
Women, A Growing Force in Business More woman than ever are in the workforce, they are starting businesses at twice the rate of men, and about a third of working women earn more than their spouses. Th
疯狂英语2004年
今天我收到了园艺俱乐部主席的电子邮件。邮件里说，很遗憾我们今年的资金不足，所以要减少很多有趣的活动。我很奇怪为什么她不等下次见面时告诉我们，后来才知道原来是有人看到了财
美国习惯用语
The United States and its allies have again responded to a North Korean missile test. This time, the response included a military exercise using real ammunition. American military aircraft included two B-1B bombers from a base in Guam and four F-35B
2017年VOA慢速英语(九)月
By Lisa Schlein Geneva 30 April 2008 A senior U.N. official says a new task force set up to tackle the global food crisis hopes to have a comprehensive, integrated action plan produced in short order. The official says key agencies such as the World
VOA常速英语2008年（四月）
By Al Pessin Pentagon 24 January 2008 The American officer responsible for helping develop an Afghan Air Force says the small corps is growing steadily, but will not be ready to even begin participating in combat operations for about five years. The
VOA标准英语2008年（一月）
You get me a bigger one? We got one more guy to try. Alright. And he is, he is a locked animal, so let's see what we can do. Peggy takes me to the biggest most aggressive wolf here. He is over a hundred pounds. So that is a big male. This wolf lost i
国家地理2007年
剧情简介 《动物特工》由好莱坞金牌制作人杰瑞布鲁克海默（Jerry Bruckheimer）担当制片人，讲的是一群智能动物为政府机构工作，组成G特工组以阻止邪恶的亿万富翁（比尔奈伊/Bill Nighy饰演）掌管世界。达尔文是这群动物特工的头儿，华雷斯则是一个性感的武术高手，此
影视英语听力
David Axe | Bagram, Afghanistan 27 April 2010 US Air Force crews prepare their helicopters at Bagram Air Base Wounded NATO and U.S. troops in Afghanistan often depend on helicopter medical evacuation teams to stay alive. The medevac teams are trained
VOA标准英语2010年(四)月
AS IT IS 2016-10-11 EU Launches New Border Force to Slow New Arrivals The European Union has launched a new border force to control the flow of immigrants entering EU member countries. The new force is called the European Border and Coast Guard Agenc
2016年VOA慢速英语(十)月
Force Awakens at Star Wars Premiere in Hollywood The new force gathered with the old Monday when Star Wars: The Force Awakens made its world premiere in Hollywood. The Force Awakens is the seventh film in the Star Wars series. The original premiered
2015年VOA慢速英语(十二)月
Last week, the U.N. Security Council approved a request for a temporary surge of 3,000 peacekeepers to bolster the overstretched U.N. mission in the Democratic Republic of Congo, or DRC. Possible troop contributors met on Wednesday at the United Nat
VOA标准英语2008年(十一月)
US Air Force Facing Cuts in Manpower, Flying Hours Captain Frank Gilliard flies an air refueling tanker - a KC-135. The 135 can also be set up as a hospital, he said. He and all other Air Force pilots are facing an 18 percent cut in flying hours. Tha
VOA标准英语2013年(三月)
By Nick Wadhams Nairobi 20 September 2007 Two senior U.S. officials in East Africa say the situation in Somalia is improving despite continued violence. They have pledged American support for a joint Arab-African peacekeeping force for the shattered
2007年VOA标准英语（九月）
唤醒天使与魔鬼的对话：Force Of The Shore Song：Force Of The Shore Appearance is deceptive So perfect in disguise Therea?s more than what you see A semblance is protective A blinder for the eyes A place to hide and flee Flee and you all ne
英文摇滚歌曲
今天我们要学的词是driving force。 Driving force, 推动力。不久前，脸谱网Facebook的访问量超过谷歌。业内专家认为，这种情况显示， Content sharing has become the driving force online, 内容共享已成为网络活
英语每日一词
By Barbara Schoetzau New York 05 May 2008 U.N. Secretary-General Ban Ki-moon has formed a high-level task force to deal with the global food crisis. From VOA's New York Bureau, correspondent Barbara Schoetzau has the story. Mr. Ban just returned from
VOA标准英语2008年（五月）
By Anita Elash Paris 02 August 2007 The international community has thrown its support behind the United Nations resolution authorizing a 26,000-strong peacekeeping force in Darfur. The force is to be in place by January. But some experts say getting
2007年VOA标准英语（八月）
今天我们要学的词是driving force。 Driving force, 推动力。不久前，脸谱网Facebook的访问量超过谷歌。业内专家认为，这种情况显示， Content sharing has become the driving force online, 内容共享已成为网络活
英语单词荟萃
France has called on the United Nations to send a peacekeeping force to take over the French military mission. French ambassador to the UN Gerard Araud made the request during a Security Council meeting. We are asking to the Secretary-General to make
英闻天下
JERUSALEM, Nov. 25 (Xinhua) -- Israeli Prime Minister Benjamin Netanyahu said Sunday that the Israeli airforce will respond with force if an Egypt-brokered ceasefire deal with Gaza is violated. We chose when it will begin and controlled how it ended.
英语新闻