单词：porpoise sonar
单词：porpoise sonar 相关文章
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背诵为王第二册
The Supreme Court says it is going to review a lower court ruling protecting marine mammals from Navy sonar. NPRs Martin Kaste has more. For years, environmental groups have argued that the Navys high-intensity, submarine-tracking sonar can disorien
2008年NPR美国国家公共电台六月
[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
Lesson 18 Porpoises 海豚 First listen and then answer the following question. 听录音，然后回答以下问题。 What would you say is the main characteristic of porpoises? There has long been a superstition among mariners that porpoises will s
新概念英语第四册
1. More problems at a troubled Japanese nuclear plant. Officials say two workers were hospitalized after stepping in contaminated water and suffering radiation burns. Meanwhile city leaders are trying to reassure Tokyo residents that tap water is saf
美联社新闻一分钟2011(三月)
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
And they have the blemish both front and rear from a facet where the opposite tooth interlocked with it. 在牙齿前后的齿面都有缺陷就是与对面牙齿相交错的地方。 What happens is that the root is anchored well into the lower jaw.
侏罗纪搏击俱乐部
The sperm whale hits him dead in the centre of his body throwing the Megalodon's enormous weight in a tumble motion under the ocean. 抹香鲸结结实实地撞中它的身体中间，把巨齿鲨庞大的身躯撞得在海洋中翻滚。 The Megalod
侏罗纪搏击俱乐部
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
Conservation Group Sees Better Future for Two Kiwi Birds News about endangered species often worries people. But on December 5, the International Union for the Conservation of Nature, or IUCN, had some good news. In publishing its yearly Red List of
2017年VOA慢速英语(十二)月
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
The Yangtze River is a major habitant for finless porpoise, an aquatic marine mammal close to dolphins. However due to increasing human activities the number of the animal has been declining in China over the years. Provinces along the Yangtze River
2018CRI中国国际广播电台
The mermaid and merman legends begin with the worship of god as have many mythologies. The earliest representations and descriptions of these now well-known creatures can be traced back as far as the eighth century BC, where merfolk got their beginni
阅读空间
NASA Scanner Offers Clues To Whale Hearing Researchers at UC San Diego and San Diego State University have imaged whale skulls in an attempt to determine the effects of sonar on whale hearing. Cynthia Graber reports It really is rocket scienceresearc
60秒科学
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
A story where we gladly bid farewell to a 'smiling angel', a finless porpoise who looks as if he's always smiling. Xiao Hua, or Little Scar, is healthy, nimble, and with hardly a scar detectable now. But six months ago, he was a real scar face. The f
cctv9英语新闻2016年
First: According to magnitude I divide the whales into three primary BOOKS (subdivisible into CHAPTERS), and these shall comprehend them all, both small and large. 第一 我按照大小,把鲸分为主要的三篇(各篇再分为章),这就把它们不
白鲸记
In shape, he differs in some degree from the Huzza Porpoise, being of a less rotund and jolly girth; indeed, he is of quite a neat and gentleman-like figure. 在形状上,它跟乌拉鲸稍有不同,身体不象它那么滚圆,腹部也不那么饱满
白鲸记
BOOK II. (Octavo), CHAPTER V. (Thrasher).This gentleman is famous for his tail which he uses for a ferule in thrashing his foes. 第二篇(八开型) 第五章(长尾鲸)这位仁兄是以它的尾巴著名的,它用尾巴来作鞭打它的敌人的竹
白鲸记