音标:[ækˌseləˈreɪʃənz] ;
n. 加速( acceleration的复数形式 ); <物>加速度; (车辆)加速能力; (优秀学生的)跳级
n. an increase in rate of change
n. the act of accelerating; increasing the speed
n. (physics) a rate of increase of velocity

By Al Pessin Pentagon 31 October 2006 U.S. Defense Secretary Donald Rumsfeld says senior American generals in Iraq and the Iraqi government are proposing an increase in the target number for Iraqi security forces, but he would not say how much the i

发表于:2018-12-07 / 阅读(290) / 评论(0) 分类 2006年VOA标准英语(十月)

New Device Detects Pilot Blackouts WASHINGTON During certain maneuvers, jet fighter pilots sometimes experience loss of vision and even loss of consciousness. Although short, these so-called blackouts can have tragic consequences. An Israeli company

发表于:2018-12-16 / 阅读(290) / 评论(0) 分类 VOA标准英语2015年(六月)

新装置或能降低战斗机飞行员失去意识情况 Two different physiological situations can lead to a pilot's loss of consciousness,says Elbit Systems senior research and development director, retired fighter pilot YaronKranz. 埃尔比特系统

发表于:2019-01-14 / 阅读(264) / 评论(0) 分类 VOA标准英语2015年(十二月)

You might think frogs catch insects cause their tongues are sticky. But why is the tongue sticky, and how does it actually adhere to these insects at these very high accelerations? 也许你认为青蛙能捕食昆虫是由于舌头很粘的缘故。但

发表于:2019-01-20 / 阅读(314) / 评论(0) 分类 2017年Scientific American(三)月

Frog Spit Behaves Like Bug-Catching Ketchup 青蛙唾液竟然类似番茄酱? You might think frogs catch insects cause their tongues are sticky. But why is the tongue sticky, and how does it actually adhere to these insects at these very high acc

发表于:2019-01-20 / 阅读(244) / 评论(0) 分类 2017年科学美国人(七)月
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able - bodied seaman
abukir bays
additional rates
air froth equipment
amphibian plane
anti-scorching agent
assuncao
Aventis
back-hair
batz
be blind with
Beers, Clifford Whitting ham
Bergius process
beville
blind to
bunching of picture element
cardiopulmonary receptor reflex
characteristic locus
cheilotomy
class B fire
computer-systems
connectron
crank case explosion
cyclosteel method
daughter of Abraham
demand-curbing measure
differential law
distilling distillation tube
doy
dried oyster
dry off
dust-up
efficient nickel plating brightener
electric bench drill
faxes
flight calculator
Fujitsu
general domain
gentie
geography instruction
get sth out of sth
go for nothing
goingbarrel
Ha Long, Vinh
hamusek
high-level scheduler
hip-hops
hypoacid
idiosepius pygmaeus
ileocolonoscopies
imperative conception
ineco
interference fringe
intermediate color
irreplegiable
junglegym
Kalamaki
lycasin
macrophthalmus tomentosus
Mamba, Pt.
members assisting others
Merthiolate
microclimatic
microminiaturization
Muhammadist
narainganji jute
neocartilages
normal working area
note-papers
otherwards
Paxistil
payroll checks
Pentoxiverin
perigean tide
pestalotia shiraiana p. henn.
pieris japonica d.don
pillarless
redefinition
resistance-to-simulated-weathering test
restricted-range
Smithia salsuginea
spring switch
stamens
store cell
stroke and strife
Stromboli, I.
sycopsis dunnii hemsl.
tee connector
Tibnah
tight market
transshipment center
trump sth up
TTF1
tube-form
unattested
uneffected
wasted neutron
wedge away
work slice
wrigglings
wrinkled sheep