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Robotics, 3-D Printing, Drones Lead 2015 Tech Innovations The waning years advances in computer hardware and software, mechanical devices, sensors and artificial intelligence brought the world another step closer to the robotic future. Electric cars

发表于:2018-11-29 / 阅读(108) / 评论(0) 分类 VOA标准英语2015年(十二月)

Sneeze and cough particles form a cloud whose turbulence pulls in surrounding air, which allows the goop to maintain buoyancy and move farther than expected. Cynthia Graber reports. Gordon: When you have to sneeze or cough, do it into the bend of you

发表于:2019-01-02 / 阅读(84) / 评论(0) 分类 英伦广角

This is Scientific Americans' 60-Second Science. I'm Chelsea Wald. Got a minute? Vinaigrette dressing: when you shake it little vinegar droplets scatter through the oil, but when you put it down, the droplets merge and the dressing separates. That's

发表于:2019-01-08 / 阅读(55) / 评论(0) 分类 Scientific American(二)月

This is the VOA Special English Health Report. Scientists continue to look for ways to deal with the deadly form of bird flu virus. Medical workers care for a bird flu patient in Medan, Indonesia, last year Researchers in Singapore, for example, hav

发表于:2019-01-11 / 阅读(49) / 评论(0) 分类 VOA慢速英语2007年(十)月

一次咳嗽会产生2万个病毒 The next time you cough or sneeze, there is good reason to cover your mouth. As many as 20,000 viruses are expelled in an average cough, which may be sufficient to infect many people - particularly those who are not

发表于:2019-02-05 / 阅读(45) / 评论(0) 分类 实用英语

Metal, heal thyself 金属,自己愈合吧 Materials science: Researchers have devised an ingenious way for the damaged surfaces of metals to repair themselves when they come to harm 材料科学:研究人员构想出了一种新颖独特的方法,

发表于:2019-02-17 / 阅读(55) / 评论(0) 分类 经济学人综合
学英语单词
4U
a-league
actumnus squamosus
alternative host
arachnoid layer
atom percent
averages out
basil thyme
beam-Froude number
benjamin's
Briggsia stewardii
butynoic acid
cardiodilator
cellopentaose
charities and donation
clarisse
collision lifetime
consumption price
Cotoneaster nitidifolius
counterbear
crowfoots
currently in effect
determinacy
di-p-tolylboric anhydride
disk file subsystem
distribution-free regression procedure
earclip
end-user interface
entry-driving machine
Erikson, Eric
escapelands
extreme acceptance
fault scarplet
ferraro
flange ring
flicker principle
four-dimensional
frequency list
gantt load chart
gel cellophane membrane
gone up in smoke
harbo(u)r machinery
health care provider type code
high speed semirandom access memory
Highgrove House
hosaina (hosseina)
hotspot name
hypoderm
ichthyoaliyeinotoxin
illposed
induction tempering
interolivary
jet velocity
lateral cerebral sulcuss
limited subgrade frost penetration method
machine chest
Malayo-
marchier
methane hydrate
mineralogical character
morose
multicasts
natural stability
nematoblastic
obligation to bearer
ODBMS
Oestromenin
output state
parorthoclase (anorthoclase)
perlea
pistate
polonium-beryllium neutron source rod
portable hearing aid
project stage
protecting wall
pseudoallergy
psychologique
releasing
sagittaria sagittifolia
Salah's sternal puncture needle
sawaengs
single-shaft-screw pump
slender sea lettuce
statistical quantity
summing circuit
summits
symmetric cryptographic algorithm
Syringa julianae
thermal printer
thoracic retractor
tkr
tofi
translating machine
transmission
trip free
underdrawings
unfinished business
variable rate loan
weight list
withen
yolo
zero-dispersion