声纳计

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(145) / 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(53) / 评论(0) 分类 Scientific American(十一)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

发表于:2019-01-02 / 阅读(69) / 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(59) / 评论(0) 分类 健康与环境

LULU GARCIA-NAVARRO, HOST: And now the story of a man with an injury that changed our understanding of the brain. The man was Phineas Gage, and he died 157 years ago today. Gage became famous for surviving an accident that drove an iron rod through h

发表于:2019-01-17 / 阅读(59) / 评论(0) 分类 2017年NPR美国国家公共电台5月

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(45) / 评论(0) 分类 新西兰英语
学英语单词
.cch
acetylene apparatus
acetylenic acid
allar
antihippie
area diagram
articulus radioulnaris distalis
assieging
astro-b
Ayon, Ostrov
B.Pet.E.
backported
bearse
bennun
bit(binary digit)
brachium (pl. -ia)
census year
Cepodem
Chordariaceae
client applications
clingstone
co-determinant
compensating duty
control interval block level
convex function
copped a feel
corase coal
cuchillo
current-controlled voltage source
cut one's teeth on
dectaflur
deferred demand
display swapping
donged
DRT (diode recovery tester)
dual-gap head
either
emolsifier
ethiodol oil
ewings
feed regulator
feedback servosystem
flow mixing subfactor
free repair
gear mark
gelation time
genus Orchis
glabralactone
guyon
health-wise
heisinger
Hock Tuesday
ID 50
IntelliSense
internal shroud
kousso
lesser fullness?
lower-middle-classes
man's best friend
many-for-one concept
messenger line
midnight
minimum flow-rate
Modřice
naphthotriazines
neutral wind shear
nitzschia lanceola
octett
ovulariopsis caricae
painful menstruation
partition balancing
penal action
pml-q
Pogoreloye Gorodishche
preabsorbing
precognitive
preemptive strike
print entry
repolymerize
sequentially complete space
shopping around
side crosstalk
silica suspension
silicon carbide wheel
solar wind
ST_light-and-colour_less-common-colours
structural compatibility
substratum for waterproofing
sword-breaker
system pressure
tall grasses
Tennants
thiopexic
Thymoxyalcylamine
to nosedive
tradin
trichloromethyl chloroformate
universal test set
vacuum circuit-breaker
valuation balance sheet
wellsite heater
wholemeal roll