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(182) / 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(138) / 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(118) / 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(174) / 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(123) / 评论(0) 分类 2017年科学美国人(七)月
学英语单词
acetamidobenzoate
acidophilic granules
Agave sisalana Perrine
amendations
Annulosa
apparent interior contact
Area entorhinalis
assertion-level logic
automatic data system uniform practice (adsup)
beta-phenylisopropylhydrazine
birched
black scale
boadecia
civilianising
cog free wheel
compound compressor
concession system
condensation center
Cremnosedum
cspan
cutting edge roundness
despond
deviney
discharging time
dispenst
distance regulation
divisable staff
electrode-electrolyte system
engine cylinder volume
febrient
feffment
feminist studies
fibroin
Fishnish Bay
fluid drams
fluoroformol
fly to someone's arms
Geranium affine
Godbout, R.
harpiocephalus harpia
hit us
houseleek
hypercalcaemic
Igali
ignorance logic
index of speciality
installed horsepower
knotheads
Kumluca
kyleskus
lamina fusion
local vector
lockmaster
lymphoreplete
male chauvinisms
mantovanis
Mashushenai, Jab.
master-board
metronidazols
micher
minced chicken
multispecific
mung beans
neaste
neo-druids
noon interval
Norzine
O/C (open circuit)
on-the-deck speed
orbit analysis
osseointegrated
PAB, Pab
paradoxographer
percent rate wattage
phoma hemisteptae
polycotyledonary
pressure sensitive mat
real effective exchange rate index
red-lead paint
righteo
Rosolina
Sankt Gallenkirch
ship ice log
smaller citrus dog
sonitus
spinocellular
stople
strandedness
strikes off
stuff-a-roni
subodh
subteam
supercurious
sustentacular cell tumor
tankleff
tarbucks
thru-axle
trueheartedness
TTPI
two dimensional electron system
zinc laurate
zirconian