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
学英语单词
abandonment of appeal
abdoul
adaptive k-d tree
alimentation of glacier
annual heating load curves
automatic rate adjustment mechanisms (arams)
autoregressive sliding model
beksan (java)
bespeared
bikram
biochronologic
blank map
boiler test
Calymmian
change period intervals
characteristic point
charging reactor
cold fusing
curved carpentry
cylinder cleaner
cytomolecular
departmental economics
design approval drawing
dilly-dalliers
Dompierre-du-Chemin
dyestuff chemistry
Dzhereliyevka
ecologic benefit
ectocommensal
edward the confessors
efecto
eot marker
Farmer's reducer
flat head straight neck rivet
floramultine
Fort Cobb Res.
Gentianella acuta
harmonic minor scales
Hepatest
hinged pedestal
His Majesty's Ship
holohyaline rock
Homarus americanus
horse-chestnut (aessulus)
hurl about
Ignace Jan Paderewski
inductoriums
instrumental drift
internal scaffolding
interstratification
JCENS
lagrangian similarity
load to collapse
local reinforcement
lustre sheet
maildrops
nasopalatine ducts
nickel containing iron alloy
obstacle scour
organoleptic test
orientings
OSI
Otis Skinner
peridial
piricularia oryzae cavara
posterior lateral tooth
potential stress
powder lancing
premaxillary gland
primary yolk cell
put someone on his honour
Pynchon, Thomas
radialised
rahuis
real-time microcomputer
retreaded tire
Ribes laciniatum
Sarkee
sathrolith (saprolite)
schadler
scops-owls
second hadn tap
self-unloading forage box
single-coated film
South African tickbite fever
spina iliaca posterior superior
sulcus infraorbitalis maxillae
syl-
tagles
technical error message (tem)
telephone jack
the ills of...are legion.
theater navy command
thin membrance mirror
topological logic
uniroyal-goodrich
unissued (capital) stock
unshare
velocity exploration
vestibular cecum
women sociology
zenographic latitude