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(228) / 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(199) / 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(196) / 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(244) / 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(191) / 评论(0) 分类 2017年科学美国人(七)月
学英语单词
4-momentum
ADA-MHA
alignment of bearings by taut wire
annexary
aquatic centre
arretez
baba au rhum
bar plain
barium ferrocyanide
beaconhills
beet pile
Bisongu, L.
bonge
bump-up
catapans
challener
channel preselection
chatoyances
chlorobutyl rubber
Clarensac
cludder
CM-LC
compensating controller
complex centered affine plane
counselment
cowuele
cross-over choke
culinary quality
cuticuras
deyans
diastasimetry
double cotton-covered wire
emulsion splitter
endellite
evaluands
feedback control systems
flail type beater
flexibler
forenenst
g.c.s.e.
gable roof type
geary's contiguity ratio
glory hole
GTAG rule
Hamiltonian paths
hand someone off
hard-tops
heterologous serotype
hook-nosed
Huygens principle
iatm(international association for testing materials)
incineration of garbage
Innocent II
insurance memorandum
Khanh Hung
kiosk substation
kornbluth
like as two peas in a pod
livery companies
lobe of the lung
local impact
magnase
male-gazey
Marmesin
martensite
mental object
micrococcaceaes
milking stool
minehillite
momoebora sinensis
nonchalking
north western red cedar
parallel-running test
Period of Carriage of Passengers by Sea
poll-type command
producer goods,producer's goods
quality monitor console
Queen, C.
quinazoline alkaloid
ram adaptor
re-enslave
relative gain of an antenna
scout boring
sfsislsms-s
sharptail mola
singidunums
snaplocks
spatial and temporal
strike a blow against
taste papilla
tavla
thiorphan
transport assembly
turbo-propeller engine
ulcerogranuloma
us measurement
VAT (value add tax)
vesica (pl.vesicae)
waste-ground
water capacity of radiator
ya-yas
yeos