音标：['baiәu'sәunɑ:] ；

n. [生理]生物声纳( 某些动物在运动时利用自身产生的声反射的制导系统)

背诵为王第二册第 14 课

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发表于:2018-11-27 / 阅读(359) / 评论(0)

背诵为王第二册

魔术美文记英语4级词汇 The New Autobiobiography

发表于:2018-11-30 / 阅读(415) / 评论(0)

24篇魔术美文串记4级词汇

NPR 2008-06-24

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

发表于:2018-12-02 / 阅读(205) / 评论(0)

2008年NPR美国国家公共电台六月

听电影学英语—泰坦尼克号 01

[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

发表于:2018-12-07 / 阅读(147) / 评论(0)

听电影学英语—泰坦尼克号

2005年NPR美国国家公共电台三月-Beached Dolphins May Be Related to Sonar

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

发表于:2018-12-17 / 阅读(248) / 评论(0)

2009年NPR美国国家公共电台7月

SSS 2009-11-27

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

发表于:2018-12-24 / 阅读(159) / 评论(0)

Scientific American(十一)月

蒋健棠听说学英语 Chapter16:The wildlife biologist

发表于:2018-12-26 / 阅读(231) / 评论(0)

蒋健棠听说学英语

侏罗纪搏击俱乐部第76期:黑暗中的双眼

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.

发表于:2018-12-28 / 阅读(110) / 评论(0)

侏罗纪搏击俱乐部

侏罗纪搏击俱乐部第83期:抹香鲸"复仇"巨齿鲨

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

发表于:2018-12-28 / 阅读(111) / 评论(0)

侏罗纪搏击俱乐部

新编英语教程第五册unit07_2_mouse_cloning_begins_bio-industri

发表于:2018-12-29 / 阅读(135) / 评论(0)

新编大学英语阅读部分

ESL Podcast 930 – Fearing Bioterrorism

Natalie: Why are you wearing that gas mask? Anton: Im getting used to it. If we ever have a bioterrorist attack, Ill be ready. Want to try one on? Natalie: No, thanks. If we get involved in biological warfare, I think well have some warning. Anton: T

发表于:2019-01-01 / 阅读(133) / 评论(0)

地道美语播客

Designer Antibiotics

85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson （Start at 1'04

发表于:2019-01-02 / 阅读(220) / 评论(0)

科技之光

ENVIRONMENT REPORT - Compromise on U.S. Navy Sonar

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

发表于:2019-01-02 / 阅读(181) / 评论(0)

健康与环境

Biosolids

By Mario Ritter Broadcast: October 28, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Farmers have long put animal waste on their fields. They may also use human waste. Mode

发表于:2019-01-02 / 阅读(195) / 评论(0)

VOA2003（下）-农业与经济

ENVIRONMENT REPORT - Navy Sonar and Ocean Animals

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

发表于:2019-01-07 / 阅读(152) / 评论(0)

健康与环境

60秒科学:NASA Scanner Offers Clues To Whale Hearing

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

发表于:2019-01-30 / 阅读(265) / 评论(0)

60秒科学

AGRICULTURE REPORT - Biocontrols, Part 2

AGRICULTURE REPORT - Biocontrols, Part 2 By Mario Ritter Broadcast: Tuesday, April 20, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Biocontrols are the way nature seeks ba

发表于:2019-01-30 / 阅读(160) / 评论(0)

农业与发展

俄科学家研制出"不老药"

俄罗斯莫斯科的一位生物能量学教授近日宣布，他已研制出一种能够有效延缓衰老的不老药，并有望于几年内上架销售。这位科学家用40年的时间研制出一种抗氧化剂，能够有效抑制氧分子对人

发表于:2019-02-06 / 阅读(191) / 评论(0)

阅读空间

新西兰英语 554 Debris from Rena

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

发表于:2019-02-17 / 阅读(152) / 评论(0)

新西兰英语

Newly Discovered Biomarker Predicts Cancer Growth

One of the most common questions cancer patients ask their doctors is: has the disease been contained or will it spread. A recent study by U.S. and Chinese researchers may help provide clues. The scientists examined genetic（遗传的,基因的） m

发表于:2019-02-18 / 阅读(123) / 评论(0)

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