abbr. lateral-energy density slope 横向能量密度倾斜
n diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Engineers are always plugging away to get better energy efficiency out of our products -- like cars that guzzle less gas or light bulbs that burn brighter on f

发表于:2018-12-24 / 阅读(151) / 评论(0) 分类 Scientific American(八)月

Engineers are always plugging away to get better energy efficiency out of our products -- like cars that guzzle less gas or light bulbs that burn brighter on fewer watts. But even if we replaced all today's bulbs with energy-sipping LEDs, the world m

发表于:2019-01-02 / 阅读(172) / 评论(0) 分类 60秒科学

Science and Technolgy. 科技。 Visible-light communication. 可见光通信。 Tripping the light fantastic. 与光共舞。 A fast and cheap optical version of Wi-Fi is coming. 一个高速而廉价的光学Wi-Fi即将问世。 AMONG the many new

发表于:2019-01-26 / 阅读(190) / 评论(0) 分类 经济学人科技系列

Science and technology 科学技术 Visible-light communication 可见光通信 Tripping the light fantastic 与光共舞 A fast and cheap optical version of Wi-Fi is coming 一个高速而廉价的光学Wi-Fi即将问世 AMONG the many new gadgets u

发表于:2019-02-06 / 阅读(170) / 评论(0) 分类 经济学人科技系列
学英语单词
2-butoxyethyl chlorocarbonate
Acerata
acute pyogenic infection of popliteal fossa
andal
anticorrosion alloy
Arteria circumflexa femoris medialis
Azbel-Kaner resonance
Beysuzhek-Levyy
bixbite (morganite)
bra-chistochronous
cadavers
carbide skiving hob
cation exchange resin
chaotic movement
Chavignon
chlorodinitro-glycerine
cimigenol
composite flexible material
conjugate matrices
cost effective design
D'Alembert's test for convergence
defeet
degenerated electron gas
delay powder
draying
dress-ing
dust panel
emitter pattern
engaging with
Erianthus rockii
event-driven programming
exchange capacity
fentems
fetal antigen
finishing gear shaper cutter
flat ware
flow history
fluvent
gravity fold
Grosse Röder
heavy liquids method
high-speed correlator
hypocalcification
inedibilities
infra-red beam
instrument maintenance codes
jacket test pressure
La Puebla de Cazalla
linear intensity
littlerock
lobsteins
med school
medisection
Microsejidae
Mlicrococcus nuclei
molar average boiling point
multiport system
Munsell chroma
N-fumarylalanine
national capitals
natural gas steam reforming
Naxalite Movement
neflumozide
oakiest
oceanographist
overpriced
pachymeningioma
packet radio technique
parameter influence technique
particle characteristics
perside
physical photometer
piece price
population studies
production service
psychophysical measurement
pulse input running test
pulverized ash wall panel
pyrogravure
quaintly
quizs
re-packaged
rear-end
rug wool
safekeeping
sale(s) agency
single-girl
Sir Barton
slip curve
specific identification method
stellar constitution
styliard
titangarnet
to fuck someone
Torilin
under-ridge tile
unstressedness
Vena profunda linguae
wash drilling
wastefulness postulate
water-supply line
whitbeck