单词：light barrier transducer
单词：light barrier transducer 相关文章
[00:03.81]barrier :n.障碍 [00:05.64]bilateral :a.双边的 [00:07.73]boycott :v.抵制 [00:09.61]dumping :n.倾销 [00:11.28]free trade :自由贸易 [00:13.29]Normal Trade Relations :正常贸易关系 [00:16.03]protectionism :n.保护主义 [00:1
商务英语分类核心1000词汇
英语畅谈世界文化lesson7:Great Barrier Reef大堡礁
英语畅谈世界文化
From VOA Learning English, this is the Health Lifestyle report. Our brains are protected by our skull. But that is not the only protection it has. A natural barrier around our brains prevents germs and other damaging substances in the blood from ente
2018年VOA慢速英语(八)月
Chapter 24 Language Barrier between Chinese and Foreigners第 24章 中外语言障碍David：Do you know any foreign experts here in China? 你认识在中国工作的外国专家吗？ You：No, language is a real barrier between Chinese and foreig
留学生在中国
barrier, ['briə] n （用来禁止通行的各种）障碍物（如：栅栏和关卡）＝obstacle 【例】The police put a barrier 警察设了路障。barrier of speech 语言的隔阂
不择手段背单词
Israeli High Court to Consider Legality of Security Barrier Ross Dunn Israel's high court has agreed to consider the legality of a controversial West Bank security barrier , just weeks before the proj
VOA2004（上）--各类新闻
By Jim Teeple Jerusalem 31 January 2007 Israel's government says it is considering moving the West Bank security barrier eastward, farther into the West Bank to enclose two Jewish settlements. VOA's Jim Teeple reports from Jerusalem, Palestinian offi
2007年VOA标准英语（一月）
A MARTINEZ, HOST: There are few places on Earth where the impact of climate change is more noticeable than along the Great Barrier Reef. It's the planet's largest living organism that now has become the world's largest dying organism. In the past 18
2017年NPR美国国家公共电台7月
There are many endurings mysteries about the great barrier reef,particularly at night,but this is one of the more enchanting ones.Watch this.This coral is fluorescing under ultraviolet light,it's this amazing light show,and it covers pretty much the
自然百科2014年
But the wonky holes will never be completely covered up, because coral cant grow in freshwater. Theyll remain an indelible reminder of the reef's past lives. But the origins of the reef lie even further back in time. And to understand them means crac
自然百科2011年
Today, the elements that support the reef are in fine balance--sun, wind and waves. But it doesn't take much to tip the balance, plummeting this huge reef into disaster. It might happen sonner than you think. Eighteen million years ago, a series of r
自然百科2011年
It's an astounding mechanism, but it looks like it's being overwhelmed. Recently, the coral has been telling us that its had enough. Because when it overheats, it self-destructs, expelling the algae that live with them. They turn deathly pale, a proc
自然百科2011年
Where the forces of nature meet? In a hidden world, a tropical miracle. At this moment, evolution is building a living colossus, a giant built by nature's tiniest creature, a model of reincarnation, a survivor born from disasterthe Great Barrier Reef
自然百科2011年
今天我们要学的词是barrier。 Barrier是障碍的意思。Language barrier, 是语言障碍。Trade barrier, 是贸易壁垒。The lack of funding was the biggest barrier to the road improvement, 意思是道路改善的最大障碍是缺少资
英语每日一词
Science and Technology Three-dimensional printing An image of the future 科技 3D印刷 印刷未来 One of the biggest manufacturers in the world gives 3D printing a go 世界龙头机器制造商用3D印刷术进行了一次格外成功的应用 U
经济学人科技系列
By Jim Teeple Jerusalem 14 June 2007 The human rights group Amnesty International has called for the dismantling of the Israeli security barrier in the West Bank. The London-based group says the barrier has had a disastrous impact on the lives of Pal
2007年VOA标准英语（六月）
今天我们要学的词是barrier。 Barrier是障碍的意思。Language barrier, 是语言障碍。Trade barrier, 是贸易壁垒。The lack of funding was the biggest barrier to the road improvement, 意思是道路改善的最大障碍是缺少资
英语单词荟萃
By Paul Sisco Washington 12 October 2007 American test pilot Chuck Yeager flew a plane through the sound barrier on October 14th, 1947. VOA's Paul Sisco takes a look back at the famous feat and the man who first flew at Mach 1. Some say only the Wrig
2007年VOA常速英语（十月）
Science and technology 科学技术 Three-dimensional printing 3D印刷 An image of the future 印刷未来 One of the biggest manufacturers in the world gives 3D printing a go 世界龙头机器制造商用3D印刷术进行了一次格外成功的应用
经济学人科技系列
The barrier separating Israel from West Bank Palestinian territories is the theme of a Washington exhibit by a dozen U.S. and Canadian-based artists. Each gives a different representation of what the artist views as an obstacle to peace. The curator
英语新闻