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(106) / 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(83) / 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(54) / 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(42) / 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
-rhexis
1-phenyl-3-methyl-5-Pyrazolone
admissible test
Aguedal
apportionment of reliability
auto shut down
basing
bewets
bivalences
blue-earth
Boksitogorsk
bolt-action
Bragg grating sensor
bunolophodont
cat plant
cataclastic metamorphism
charge chute
chuguos
cipher
company limited by shares
conveyance system
coproporphyrinuria
cornucavate
cross tongue
crude assay
current carrying capacity of single laid cable
decladinosylerythromycylamine
delphinium trichophorum franch.
devocation
dianetic
direct sampling technique
dirtier
disodium glycyrrhizinate
double stack container train
downlines
echotrap
economic aggression
endurance road testing
equal opportunity employer
fat metabolisms
ferro-nickel
florescue
force someone to his knees
group decision-making
guard against theft
hazy picture
herbiness
heterosexualism
high area storm
high precision small-module horizontal gear hobber
horus
human interface
ignition cam
iron o?lite
j.w
Japanese macaque
Jassans-Riottier
joseph hookers
Jude
kara kums
key job
launching installation
lay in a stock of merchandise
left handed rope
management platform
misfeatured
mowrers
optical-null spectrophotometer
pee-pot
plumbum subaceticum
polyphenol layer
Porto Farina
posterior dislocation of shoulder
public water supply
r.c.d.b.
radiometric ore sorter
reachability of system
reject on procedural grounds
Revolutions Per minute
rwa
saturation of ionization current
sbdcs
scdi
semi-comic
serried
settlement gauge
seventh art
slsascstsos-s
socket welding end
steel eutectoid
stetho-
stop needle
supper fine grinding
trimming gear
triplex cable
turple
ultra HDTV
ultralounge
vegetative shoot
water-soluble phosphorus
Y-factor
z-test