[网络] 激光用共振腔;雷射用共振腔

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Whether it's for streaming Netflix or sharing files, we're gobbling up more and more dataand we want it faster. But even shooting data with lasers over fiber-o

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 Scientific American(五)月

There Paul Jobs could tinker with cars and his son with electronics. 在车库里,保罗乔布斯可以修汽车,而他儿子可以玩他的电子设备。 Its other significant attribute was that it was just over the line inside what was then th

发表于:2018-12-26 / 阅读(35) / 评论(0) 分类 乔布斯传

[00:06.37]The United States has a new official clock. [00:10.95]The clock began operating late last year in the American city of Boulder,Colorado. [00:18.39]Experts say the new clock is so exact that it will neither gain nor lose so much as one secon

发表于:2018-12-26 / 阅读(36) / 评论(0) 分类 美国英语听力80篇

STEVE EMBER: Im Steve Ember. FAITH LAPIDUS: And Im Faith Lapidus with EXPLORATIONS in VOA Special English. This week, we tell about one of the most recognizable objects in science fiction the laser. And we tell how the laser has made its mark in the

发表于:2019-01-12 / 阅读(51) / 评论(0) 分类 2010年VOA慢速英语(九)月

LULU GARCIA-NAVARRO, HOST: Forget about scarecrows. Some farmers are using laser beams to shoot thieving birds from their fields. From the berry fields of Oregon, Tom Banse of the Northwest News Network brings us this report. TOM BANSE: Blueberry and

发表于:2019-01-17 / 阅读(35) / 评论(0) 分类 2018年NPR美国国家公共电台8月

Something that's so unbelievably simple,but he would be experiencing something that I wouldn't be,because I'm on top of the sound. 一些特别简单的,但他可能感受到我所不能感受到的东西,因为我在声音的上方。 I have the

发表于:2019-01-18 / 阅读(32) / 评论(0) 分类 TED演讲国际问题篇
学英语单词
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A teams
abous
acean
amarygmus bremeri
anc.
B-movieish
back-space control
benzenyl amidoxime
blepharitis phlegmonosa
boiler suspender
bonded transportation
Buniel
Buxy
carbon dioxide an(a)estheetization system
cell nuclein
centricleaner
channel jet
chlorhistechia
cnidarian
coherent pulses
concert-masters
constant-gradient accelerator structure
Cosulid
cranitis
Crithmum
cross correlative function
data display module
defecation with dry lime
deleon
dermatophagoides pteronyssinus
diaphoretic pernicious fever
discharging expenses
dispersing squab raising
drill column
ductilometer test
eacles imperialiss
embryogenesis in plant
Erdkobalt
evaporation spectrum
feeding and catching table
forty-four repeater
graduated rates
gurevitch
high polymer coagulant
hollow lead anode
housefraus
Iansiti
ides of March
idiomats
Ikomba
inadmissibility of james-stein estimator
institute an investigation
integrated sidelobes
invoice for purchase
Josephson equation
larmours
line structure language
liquid lamination
Mecklin
medical doctor's certification
mid deck
moderation effect
moisture-removal
mussed
NDCS
nonparametric sequential analysis
oil bucket pump
omen-60 orthogonal computer
parametric search
pignattis
plain chicken
pneumobulbous
polyisoprenoid
pons asinorum
price index of imports
pyrrhula erythaca owstoni
radula javanica
recognition test
Royal Rotterdam Zoological Garden Foundation
Samothrace
schedule outage duration
section of the rail
selected document
shallow water fauna
Sharpe ratios
slaking residue
soil porosity
Spigelian line
Spirillum rubrum
ST_moving-quickly-and-slowly_shaking-swinging-and-vibrating
storage immediate
stream classification
strees
surface of ballast
thermometer error
tootsy
Tshisuku
ultramodernists
unhugged
universal schilling rudder
Vanda coerulescens