单词：heliborne long-range active sonar (helraps)
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[01:36.60]【铁 达 尼 号】 [02:18.36](Sonar Pings) [02:21.60]Man: 13 meters. You should see it. 距离13公尺，应该看得见了 [02:33.84](Sonar Pings) [02:38.52]Okay, take her up and over the bow rail. 越过船头的栏杆 [02:39.20](Over
听电影学英语—泰坦尼克号
The most unusual national parks in the United States MARIO RITTER: Welcome to the VOA Special English program EXPLORATIONS. I'm Mario Ritter. Today, Steve Ember and Sarah Long tell us about two of the most unusual national parks in the United States.
2013年VOA慢速英语(三)月
EXPLORATIONS - A Visit to Volcanoes National Park and Haleakala National Park MARIO RITTER: Welcome to the VOA Special English program EXPLORATIONS. Im Mario Ritter. Today, Steve Ember and Sarah Long tell us about two of the most unusual national par
2012年VOA慢速英语(一)月
Marine Biologists and volunteers in Key Largo are working to save the survivors of a group of dolphins that beached themselves last week in the Florida Keys. Invesigators are trying to determine if sonar from a nuclear-powered submarine played a role
2009年NPR美国国家公共电台7月
It really is rocket scienceresearchers are using huge x-ray scanners from NASA to understand how sonar might be affecting the hearing of large ocean mammals. These scanners are usually used to inspect the space shuttles solid fuel rockets. Navy sonar
Scientific American(十一)月
LSD is one of the most potent hallucinogenic drugsactive at just around 100 microgramsa miniscule amount. That fact has fascinated pharmacologists for decades. Namely, how can it have such long-lasting effects12 hours or moreat such tiny doses? To fi
2017年Scientific American(一)月
ENVIRONMENT REPORT - November 22, 2002: Compromise on U.S. Navy Sonar By Cynthia Kirk This is the VOA Special English ENVIRONMENT REPORT. The United States Navy has agreed to temporarily limit testing
健康与环境
EXPLORATIONS - November 13, 2002: Volcanoes and Haleakala National Parks in Hawaii By Paul Thompson VOICE ONE: This is Steve Ember. VOICE TWO: And this is Sarah Long with the VOA Special English progr
Explorations
ENVIRONMENT REPORT – August 2, 2002: Navy Sonar and Ocean Animals By Caty Weaver This is the VOA Special English Environment Report. American officials have approved a plan for the United States Nav
健康与环境
If the human genome were put in a straight line, it would be over six and a half feet long. So how do you store all that DNA in a tiny nucleus? And have the cell manage it? Researchers explain how in a study featured on the cover of the October 9th i
Scientific American(十)月
VOICE ONE: This is Steve Ember. VOICE TWO: And this is Sarah Long with the VOA Special English program EXPLORATIONS. Today, we visit two of the most unusual national parks in the United States. They are Volcanoes National Park and Haleakala National
VOA慢速英语2007年（五）月
STEVE EMBER: This is Steve Ember. SARAH LONG: And this is Sarah Long with the VOA Special English program EXPLORATIONS. Today, we visit two of the most unusual national parks in the United States. They are Volcanoes National Park and Haleakala Nation
2010年VOA慢速英语(九)月
Lesson Eighteen 听力部分 Dictation: Please prepare your paper and pen. ___________ is always a _____________ for every _____. The ______________ of ____ contamination and ______________of food-borne _______ underscore the ____ for _________ in __
王强口语 第二册
Topics: U.S. Census, Driving While Texting, as well as versus as long as, change versus alter versus modify versus transform Words: census household questionnaire gender privacy Driving While Texting (DWT) Driving While Intoxicated (DWI) drunk crackd
美语听力 English Cafe
Genome: Now in 3-D! In a study in the journal Science, researchers report the mapping of the three-dimensional structure of the human genome, and the finding that the cell's nucleus is divided into two regions, one where DNA goes to get expressed. Cy
60秒科学
EXPLORATIONS - Volcanoes National Park By Paul Thompson Broadcast: Wednesday, June 16, 2004 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: Lava, liquid rock, shooting into the air. And this is Sar
Explorations
How to Find Time to Exercise We all know we should get more exercise but most of us dont manage to be nearly so active as we want to be. Its easy to blame busy lives. If your boss expects long hours or you run your own business, or youre a stay-at-ho
阅读空间
Debris from the Rena has reached beaches in the Coromandel. There are bags of milk powder, plastic and rope on the beaches and broken containers. The sea around the Rena is white from broken bags of milk powder. There is also oil for about 3km around
新西兰英语
Calm Old Age 淡定的老人们 Ya?l:So here is a question for our listeners: If there were a potion that would allow you to stay young forever, would you take it? Don: Thats obvious, Ya?l? Who wouldnt want to recapture their youth? Y：Im not so sur
英语听力文摘 English Digest
Get It? 明白了吗？ Did you ever wonder what occurs inside your body when something funny happens? What is this thing we have in our brains that makes us say ha-ha when someone slips on a banana? One way to find out is to watch the brain laugh. T
英语听力文摘 English Digest