单词：non-metal ultrasonic detector
单词：non-metal ultrasonic detector 相关文章
Passing Through Airport Security Roland: Why are you so nervous about flying? Natalie: Im not nervous about being in the air. Its going through security. I hear its a hassle and I dont want to end up being strip-searched. Roland: You wont be strip-se
2012年ESL之旅行交通购物
The airport is your first stop before leaving on your dream vacation or trip. Generally speaking, you should arrive at the airport with plenty of time to spare. Don't arrive 10 minutes before your plane departs. You can park your car in long-term par
社会—In the Community
Its time to play a little game, everybody, should we say it together, truth, truth and a lie. Mayim has agreed to tell us 3 stories about herself, two of them are true, one is a lie, well all guess which is the lie, and Mayim, are you ready? I am, Im
访谈录2012年
The Hammerheads Hammerhead These unique sharks have heads resembling flattened, T shaped hammers. But how would such a weird head evolve? One hypothesis is that having their eyes spaced far apart might give these sharks better 3D vision. Another hypo
英语时差8，16
Could you tell me what's in your bag,please? 能不能告诉我包里有什么？ Now let me see,some clothes,my shaving kit,a couple of paperbacks and some souvenirs. 请让我看看。有衣服、我的刮脸用具、两本平装书和一些纪念品
旅游英语口语就该这么说
Could you tell me what's in your bag,please? 能不能告诉我包里有什么？ Now let me see,some clothes,my shaving kit,a couple of paperbacks and some souvenirs. 请让我看看。有衣服、我的刮脸用具、两本平装书和一些纪念品
旅游英语口语就该这么说
The recent school shooting at Marjory Stoneman Douglas High School in Parkland, Florida, claimed the lives of 17 students and teachers. It also started a wave of protests among young people across the country. These student activists are calling for
2018年VOA慢速英语(二)月
3D Guns Raise Legal Questions In the U.S. this month, Americans are discussing whether 3D [three-dimensional] guns are legal. 这个月，很多美国人都在讨论3D枪是否应该合法化的问题。 Cody Wilson says yes. He first used a website
2018年VOA慢速英语(八)月
Wall Street shot higher Monday,sending the Dow Jones Industrial Average above 14,000 for the first time in two and a half months.The blue chip index rose by some 200 points as it surged to a new high at the start of the fourth quarter. A University o
美联社新闻一分钟2007
Scientists Use Sound Waves to Find Hidden Cracks in Bridges, Airplanes 科学家利用声波在桥梁和飞机寻找隐蔽的裂缝 On August 1, 2007, a steel bridge in Minneapolis, Minnesota, collapsed, sending people and vehicles into the Mississip
2015年VOA慢速英语(四)月
AS IT IS 2015-01-05 Prisoners Work to Protect the Planet 囚犯致力于保护地球 The United States has the largest prison population in the world. More than 2 million people are jailed. China is second with about 1.7 million. In some U.S. prisons
2015年VOA慢速英语(一)月
In this Business English Pod lesson on business travel, we' ll be looking at how to deal with security checks. 这节商务英语播客是有关商务旅行，一起来了解下如果进行安检。 In recent years getting through the security check
原汁原味商务英语播客
RAY SUAREZ:More about this technology, the man behind the project and the questions this all raises from Andy Greenberg of Forbes. He's been covering this story and was in Austin when Cody Wilson first tested the gun. And, Andy, now that this thresho
PBS访谈社会系列
Metal detecting is a popular hobby in Britain, with clubs across the country. In the past year, detectorists, as they are called in Britain, have made big finds, valuable both in financial and archaeological terms. Jennifer Glasse | London 12 January
VOA标准英语2010年(一月)
Part One Xiao Gao is atthe airport checking in. Jingjing plays the part of the airline employee 小高正在机场办理登机. 京晶扮演航空公司职员 JJ:Hello, sir! Where are you flying today? 京晶：您好，先生，您此行飞往何处？
英语PK台
It's time for me to start preparing our Summer holiday. This year, my family and I will take a trip to Spain for a month. We will visit my father and sister in Scotland and England first, and then family and friends in Spain. I can't wait. Our prepar
英语博客 A cup of English
俄罗斯自杀炸弹致15人死亡，数十名受伤 A suicide bomber killed 15 people and injured dozens at a train station in southern Russia Sunday, officials said, stoking fears of terrorist attacks ahead of the countrys Winter Olympics in Febru
英语新闻
释义： go through 经受（困难），经历，通过，查找，做(with) 字面意义为通过(through)，可以指经历，经受，或者为了找某样东西而翻箱倒柜。go through with sth 则表示原本的计划和约定不得随意改
老外最常用的英文短语
Before beginning todays podcast, I need to explain a few words. The first word is treasure. Treasure means things which are very valuable; generally, treasure means things made of gold or silver or precious stones. The second word is hoard. If someon
听播客学英语
So this previous year, I won the Intel International Science and Engineering Fair. 因此上一年，我赢下了国际科学以及工程大会活动的第一名。 I developed a detector that replaces the current detectors that Homeland Security has
TED演讲教育篇