多普勒声纳转换器

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发表于:2018-11-27 / 阅读(348) / 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(199) / 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(138) / 评论(0) 分类 听电影学英语—泰坦尼克号

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(239) / 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(150) / 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(103) / 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(105) / 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(174) / 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(145) / 评论(0) 分类 健康与环境

超声成像 ultrasonic imaging 实时成像 real-time imaging 灰阶显示 gray scale display 彩阶显示 color scale display 经颅多普勒 transcranial doppler 彩色多普勒血流显像 color doppler flow imaging 彩色血流造影 color flow

发表于:2019-01-08 / 阅读(157) / 评论(0) 分类 医学英语

AS IT IS 2013-08-19 Survival Shelters, Tornadoes and Old Ironsides 生存避难所,龙卷风和老铁壁 Hello, and welcome to the Monday edition of As It Is, our daily show for people learning everyday American English. 大家好,欢迎大家收听周

发表于:2019-01-12 / 阅读(137) / 评论(0) 分类 2013年VOA慢速英语(八)月

AS IT IS 2013-09-11 Rising Temperatures Could Mean More Wildfires 不断上升的气温可能会意味着更多的森林大火 From VOA Learning English, welcome to As It Is! Im Mario Ritter. On our show today, we hear from two weather experts. We he

发表于:2019-01-12 / 阅读(265) / 评论(0) 分类 2013年VOA慢速英语(九)月

Science and Technology Three-dimensional printing An image of the future 科技 3D印刷 印刷未来 One of the biggest manufacturers in the world gives 3D printing a go 世界龙头机器制造商用3D印刷术进行了一次格外成功的应用 U

发表于:2019-01-26 / 阅读(149) / 评论(0) 分类 经济学人科技系列

生活大爆炸第一季第六集_1:The Middle Earth Paradigm -Rajesh: Okay, if no one else will say I will. We really suck at paintball. 好吧,如果没人说那就我来说。我们在彩弹比赛中的表现实在太差了! -Howard: That wa

发表于:2019-01-28 / 阅读(237) / 评论(0) 分类 生活大爆炸第一季

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(243) / 评论(0) 分类 60秒科学

Science and technology 科学技术 Three-dimensional printing 3D印刷 An image of the future 印刷未来 One of the biggest manufacturers in the world gives 3D printing a go 世界龙头机器制造商用3D印刷术进行了一次格外成功的应用

发表于:2019-02-06 / 阅读(131) / 评论(0) 分类 经济学人科技系列

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(146) / 评论(0) 分类 新西兰英语

Doppler on Wheels Rolls Into Tornados Doppler radar reads the weather based on reflections from items moving through the air. Joshua Wurman was the first to put the technology on wheels and drive it directly into the path of a tornado. I invented Dop

发表于:2019-02-17 / 阅读(192) / 评论(0) 分类 VOA常速英语2013年(八月)
学英语单词
academicians
admortization
amylose content of the grain
antiferromagnetic material
araw
as though one owned the place
autonomous sequential circuit
balanced armauure loudspecaker
Bartoszyce
bastard phuisn'e
Bon Accord
branded
can't imagine
cash disbursements journal
cathode ring
ceramic sponge
chess computer
cone-shaped tube
congruent integers
cornu posterius medullae spinalis
cumulus clouds
data set record format
data-set organization
discoidal division
distance apparatus
double-walled bell jar
dreamwalked
drosera rot
end run
equalization charges
Ervatamia mucronata
Falls Road
fine crush road
genetic interference
glass fiber reinforced polyester sheet
go easy on
hartia kwangtungensis chun
hidta
high resistance ground
holographic information retrieval system
hooded cloak
horizontal gallery camera
hygrotropism
ice mine
instantaneity
interdigital pilonidal sinus
interior function
interperiod allocation
isotope dilution spark source mass spectrometry
karee
laminar aluminum particle
lead circulating pump
lee anchor
loss carried forward to the next term
make a show of
master group modem
maximum rating
multilateral quota
multiple endocrine neoplasia
mylonite gneiss
Net Short
night traffic line
nonatheists
nonguitarist
normal liquid
not have the heart
nursemaiding
offensant
optical fiber devices
oracle 7
oxygen flow meter
pickled cabbage
playrights
polyimide composite
powder metallurgies
preferred vendor
presdl.
pumpkinification
quadrisects
recognition methods
recoverest
regulating screw
religious marriage
report of calibration
reverse lever latch link
shaft current protection
silver-worker
silvereth
skarn ore deposit
squirrelcage
telepest
threewhiteboots
transition metals
undershelves
vermiculation
Vievis
wavefront distortion
worksomeness
x - ray spectrum
zenith astrograph
zoglin