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(46) / 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(78) / 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(58) / 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(62) / 评论(0) 分类 经济学人科技系列
学英语单词
abbatoir
Algerri
Alphalipoproteinemia
amino transferase
AND-circuit
archaeoacoustics
balik golu
bending tool
bull-calves
bustes
ceyssatite
clocks on
cobalt autunite
coefficient of recovery
compressor drum
conglomerate silicosis
cotton thistle
coupling bit
cross-country riding
d-nc
delirium nervosim
diastolic murmur
diligences
divergent wave
drying and stretching frame
dynamic catalogue
ellipse current
Embulbul
Fabry-Perot interferometer
fantails
fast transient loader
film library
first papers
flacoes
floating booster
formosan-
glow lamps
have it easy
high speed paper sack bottomer
hitch yoke
holder type transplanter
intermediate frequency preamplifier
islamized
istigobius campbelli
ligamenta calcaneocuboideum
limited guarantee
loosely bound wave
Maehyang-ri
magillicuddy
masterlines
measurement space
mercedes benz
metallocyanide
methyl heptane
microATX
microseismogram
millepora murrayi
missile orientation
modulating amplifier by variable reactance
nasopharyngeal fibroangioma
neck rings
niah
Noddynomics
nonmillionaire
opacity meter
outtake
over-the-top vapour
penniless
potentiometer control
Protium heptaphyllum
Purdysburn
radio-autograph
rake through
RLLC
rouen duck
Samgar-nebo
sand-grouse
satellite ionospheric beacon
scanning converter unit
Seto-guro ware
shifting coil voltage regulator
smittled
Sparklite
specific gravity flask
springing point
state estimator
static retinoscopy
technological chain
the wrong track
timing uncertainty
treason-felony
vedder's sign
wailuku
wax remover
Weihmichl
Wenatchee
whinney
white resisit printing
youlowe
yyyy-mm-dd
zanucks