音标:['tu:f'əʊtɒn] ;
双光子

Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of

发表于:2018-12-24 / 阅读(122) / 评论(0) 分类 2015年Scientific American(一)月

A nightlight may keep those monsters under the bed. But it may also open the door to the blues. Because a new study reveals that animals exposed to light all night long show signs of clinical depression. If you have access to electricity, you no doub

发表于:2018-12-24 / 阅读(125) / 评论(0) 分类 Scientific American(十)月

DAVID GREENE, HOST: I mean, let's listen to this. (SOUNDBITE OF TV SHOW, STAR TREK: THE ORIGINAL SERIES) JAMES DOOHAN: (As Captain Montgomery Scott) Ready to transport. WILLIAM SHATNER: (As Captain James T. Kirk) Energize. D. GREENE: Yes, the familia

发表于:2019-01-16 / 阅读(159) / 评论(0) 分类 2017年NPR美国国家公共电台7月

But this still doesn't explain why light is able to pass through glass rather than being absorbed as with most solids. 但是这还是不能解释为什么光可以穿透玻璃而不是像其他大多固体那样被吸收。 For that, we need to go a

发表于:2019-01-17 / 阅读(131) / 评论(0) 分类 TED演讲教育篇
学英语单词
acetylmorphone
acoustic absorption
aftersensations
ageing of population
agriculture-based
animated mapping
antidotical
arabatska zatoka
autonomic plexuses
back digger
bank for foreign trade
barbed wire entanglement
bartleson
battery crate
bemananjara
bipolar waveform
birthwort family
bo be no marked by clear anatomical change
broaching speed
cane sugars
competitive education
conin'
cryptarchy
cybercommunity
depreciation replacement
drumstick (davidson & smith 1954)
eckfords
ecology of public administration
economic instability
El Juncal
electronic tablet
Ellingsφya
endmills
False Pt.
family affairs
family hypodermatidaes
field lens
filial regression
grate bar thimble
guard interval
here there and everywhere
high quartz solid solution
HRCC (heat recovery combined cycle)
Hypoestes triflora
ideal bureaucracy
Kilomètre 28
Koch's tyberculin
KSG
lipidal
louvered air intake
male nuptiality
mattress woven
Mayakovskiy
mixed extension of game
morus alba l. var. pyramidalis ser.
nativisation
nomme
nonenzymatic
on-track equipment
orpement
pepper steaks
perforated panel air outlet
pharyngoesophagram
phase-shift circulator
plow pan
pneume
Poa botryoides
prepreg material
questinably
regest
reinvest profit
richochet
Root Glacier
root-clearance
round-nosed blade
rubble flow
samenstrang
Santa Marta Grande, C.de
shield technology
smoothening action
snezhura
solar thermoionic power generation
statistic chain
steam-driven excavator
subjective theory of value
sugar of leaching
Sulphonal
sun set
surrender oneself to justice
tan waste press
teletalking
third pinacoid
three wheeler
Tiola
trace toxic contaminatants
tri-d
variable aperture seismic array
variable diameter ram
Vicara
work front
yohko
zipper