霾滴

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(103) / 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(82) / 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(53) / 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(48) / 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(41) / 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
-methasone
addressed location
air conditioning equipment
albedo component
algau (allgau)
assisting deserter
attention-seeking
back beach
Bahia de los Cochinos
ball bench scale
battues
belloq
bergamotol
bioenvironmental
calorimeter thermometer
calyptrolithophora hasleana
carbyl amine
Chinese numeral
complex tissue
condensed nuclear hydrocarbon
conservation district
cyfloxylate
Dak Donaf
damnabler
diagonal built
digit hexadecimal
direct arc heating
double six
dry hydrogen bomb
duppying
echo altimeter
edeless
figurin
force field method
four-terminal resistance
gap measuring wedge
geloina erosa
gelotologist
genus Commiphora
greyce
grunches
Haiphong
Herl'any
hydraulic bowing machine
Hypnorm
i-smitten
integrated type of primary system construction
knife coating
kummels
laken
lateralis insertio
law of lights
longitudinal split of nail
low-temperature cooling
malignantness
mesopause
minimum perceptible brightness difference
minimum working excitation
Mundybash
nitrituria balance
non alloy steel
nonmultiplicative
norton shores
nrp (notice of research project)
offset deposit
oil-tight bulkhead
once-perfect
overall responsibility
periscope height
Poing
pressure gas
put something into perspective
randomly coiled chain
re-isolation
reel step
renegues
repumping house
room scattering
score a bull's-eye
semi-finished material
Shel Silverstein
skweyiya
snap clasp
soil identification chart
somnolentia
sous
spleenish
sulfated cod oil
sumi
suppurating
Takanelite
take a census
thinning in the lower story
Too much water drowned the miller.
twisted pair transmission line
U-type furnace
umbrellawort
underinflating
upper-works
vetere
voltage to frequency conversion
water-ret