被动式声纳侦测

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发表于:2018-11-27 / 阅读(334) / 评论(0) 分类 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

发表于:2018-12-02 / 阅读(190) / 评论(0) 分类 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

发表于:2018-12-07 / 阅读(128) / 评论(0) 分类 听电影学英语—泰坦尼克号

Today's topic is active voice versus passive voice. Here's Brian from Iowa: It drives me crazy when people write in passive voice. How can I teach people how to tell the difference between passive and active voice and stay away from passive voice? Th

发表于:2018-12-07 / 阅读(139) / 评论(0) 分类 英语语法 Grammar Girl

身体健康常用词汇 regular check-up / health checks定期体检 die from / of (cancer)死于癌症 make it to the end of your natural term有幸自然死亡 take risks冒险 earlier detection and treatment更早的诊断和治疗 place strain o

发表于:2018-12-08 / 阅读(146) / 评论(0) 分类 四六级词汇与结构练习

by Mignon Fogarty Today's topic is active voice versus passive voice. The podcast edition of this article was sponsored by GoToMeeting. With this meeting service, you can hold your meetings over the Internet and give presentations, product demos and

发表于:2018-12-15 / 阅读(138) / 评论(0) 分类 英语语法 Grammar Girl

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(232) / 评论(0) 分类 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

发表于:2018-12-24 / 阅读(132) / 评论(0) 分类 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.

发表于:2018-12-28 / 阅读(94) / 评论(0) 分类 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

发表于:2018-12-28 / 阅读(98) / 评论(0) 分类 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

发表于:2019-01-02 / 阅读(166) / 评论(0) 分类 健康与环境

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(139) / 评论(0) 分类 健康与环境

AS IT IS 2014-07-13 Move over World Cup, Time for RoboCup 世界杯后开始机器人杯 The end of the World Cup does not mean the end of international competition in Brazil this year. A major football event will happen in the South American country

发表于:2019-01-12 / 阅读(136) / 评论(0) 分类 2014年VOA慢速英语(七)月

From Shakespeares Pen to Our Mouths 从莎士比亚的笔到我们的嘴 Now, time for Words and Their Stories from VOA Learning English. William Shakespeare is probably the most famous English-language writer ever. Historians think Shakespeare was b

发表于:2019-01-12 / 阅读(133) / 评论(0) 分类 2016年VOA慢速英语(五)月

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(234) / 评论(0) 分类 60秒科学

By Paul Sisco Washington, DC 17 October 2007 Medical imaging and improved computer technology are significantly making the detection of heart disease easier, safer and better. VOA's Paul Sisco reports. Dr. James Earls is the medical director at Fairf

发表于:2019-01-31 / 阅读(131) / 评论(0) 分类 2007年VOA常速英语(十月)

Creating Your Dream Lifestyle With Passive Income Every person has a dream of how they would live their life if he did not have to spend a large amount of his time working. Most people rely on earned income to support their finances. This makes a dre

发表于:2019-02-04 / 阅读(154) / 评论(0) 分类 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

发表于:2019-02-17 / 阅读(135) / 评论(0) 分类 新西兰英语

With a variety of bands, and price tags ranging all the way from $349 $17,000, theres an Apple Watch for everyone. Except, possibly, the heavily tattooed. 面向大众推出的Apple Watch,款式多样,价格从349美元到17000美元不等。现在

发表于:2019-02-17 / 阅读(144) / 评论(0) 分类 阅读空间

PERTH, Australia/KUALA LUMPUR, April 6 (Xinhua) -- Chinese and Australian ships have picked up acoustic signals while searching for missing Malaysia Airlines Flight MH370 in the southern Indian Ocean. The underwater detection represents an important

发表于:2019-02-18 / 阅读(335) / 评论(0) 分类 英语新闻
学英语单词
4-chloromercuribenzenesulfonate
a surging crowd
absolute normal number
agricolas
ampere-hour efficiency
apologize to sb for sth
Archinephricduct
bacterial exotoxin
Baker, Can.
barium hydrogen oxalate
bed surface
bench mounted hardness tester
beneficiation machinery
Birt
bismutoferrite
boll rot of cotton
bulboreticulospinal tract
capsellas
cascade solidity
Cassia pulpa
changing-the-subject
civilish
comanaged
coral reep
countervote
cross-suckling
DAPI
deep analytics
delete entered
denunciatory
dicing
dowries
fast convolution
fight one's way back to
foundation fabric
friend or foe
full-fraught
fur black D
fuzzy number absolute value
gabriel-ernest
general obligation special assessment bond
good drunk
granulocytic sarcoma
Hainan Special Economic Zone
high tension magneto
hookum
hoskyn
impractically
indistinctnesses
Isangate
jollify
Judeofascism
Khwarshi
kilnhouse
knifeboards
left hand thread tap
leftmost complete branch
limbal tumor
liushen pills
lollingites
lubrication unit
LWMEL
malt syrup
map overlay analysis
marginal accessory vein
microdocs
mitral commissurotomy
model worker
N-ethylaminobenzene
night dew
Nussbaum's narcosis
phase comparison relay
pipe link
pointer structure
porous flow,seepage flow
positron emission conditions
press table
pressuresensitivity
ptyass
radiosonde detecting room
revulsant
ribosomic
Rio Grande Abyssal Plain
rotary retort furnace
Shiel.
soy(bean) powder
spheric wave
stencil tissue paper
subinflammatory
tachyglossidaes
thermonuclear attack
thin type speaker
took out a patent on
touch it off to the nines
unauthorized practice
vagitarians
visual comfort probability
voltage-regulated inverter
webopedia
wind stop
world politics