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(92) / 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(119) / 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(143) / 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(101) / 评论(0) 分类 经济学人科技系列
学英语单词
actual damages
advanced operations base
anaphylactic intoxication
Anarrhichthys
antimonopolists
arcing time
at whole sale
aureothricin
austro-asiatic languages
bad bishops
Baileyton
be deaf in an ear
beam magnet
beggar's lice
big spoon
bracket joint
bright hydrogen flocculus
caprifications
cetoxime
chiasmatic groove
cirsium microspictum nakai
cloxypendyl
COMSOCEUR
cost and freight free out (c & fo)
course detector
covarions
crustose thallus
diecaster
double plate shear test
dry-lot dairying
EMC virus
esv
fall by the edge of the sword
fiber stress at proportional limit
flame scanner
flit about
flooding dock
fluophor
four-stagest
gaseous mixture
go sideways
greek modes
green wound
ground annual
groundburst
hairlessnesses
hand digitization
impedance void meter
income stock
inequivalent
infradentale
instruction processor
jealous
lipomelanotic
macroleukoblast
magnet needle
modified accrual basis
Narasun
Natroncarnotite
niobe
non-stationary cavities
nonwatertight floor
oil pump housing
oilless compressor
open bridge floor
optical fusions
palaeanthropology
paratone
pawl lever
petroleum solvent
Phenolax
Pinus wallichiana
pound per hour
pow wow
pre-cueings
projection objective
property porn
pseudo-convex domain
Public Works of Art Project
pulsating aurora
Pyrus nivalis
Quetzalcoatlus
R Fd.
ratione soli
record signal format
rural agricultural industry
rutabaga
scaphocalanus pacificus
seens
sensitizing concept
software resource utilization
soil productivity grading
squeek time
standard track layout at intermediate stations
static rejuvenation
superquark
tar heavy oil
technological upgrading
vtg
walled frame
weichselian
ytake