尖波产生器, 尖波发生器

[00:04.00]flight [00:06.22]n.飞翔,飞行;航班;航程;楼梯的一段 [2]逃跑,溃退 [00:08.44]fling float flock [00:11.62]vt.(用力地)扔,抛,丢 v./n.漂浮,浮动 n.(禽,畜等的)群;大量v.群集,成群 [00:14.81]flood floor [0

发表于:2018-11-30 / 阅读(402) / 评论(0) 分类 考研英语词汇2005

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发表于:2018-12-06 / 阅读(540) / 评论(0) 分类 远大前程.Great.Expectations

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发表于:2018-12-06 / 阅读(339) / 评论(0) 分类 远大前程.Great.Expectations

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发表于:2018-12-06 / 阅读(263) / 评论(0) 分类 远大前程.Great.Expectations

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发表于:2018-12-06 / 阅读(259) / 评论(0) 分类 远大前程.Great.Expectations

Time again for StoryCorps. We have been listening in this oral history project crisscrosses the country. Today the story of the late Wallie Earl Dow. He was a man who often found himself on the wrong side of the law. Time and time again his exploits

发表于:2018-12-19 / 阅读(316) / 评论(0) 分类 2007年NPR美国国家公共电台

fruitful a.多产的;有成效的 frustrate vt.破坏,阻挠;使失败,使泄气 fry v.油煎,油炸 fuel n.燃料;养料 v.(给)加燃料;刺激;推动 fulfil vt.履行(诺言等);完成(计划等);达到 fulfill vt.履行(诺言、

发表于:2018-12-30 / 阅读(223) / 评论(0) 分类 大学英语四级词汇拼读版

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发表于:2019-01-01 / 阅读(308) / 评论(0) 分类 远大前程.Great.Expectations

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发表于:2019-01-01 / 阅读(261) / 评论(0) 分类 远大前程.Great.Expectations

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发表于:2019-01-01 / 阅读(344) / 评论(0) 分类 远大前程.Great.Expectations

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发表于:2019-01-01 / 阅读(234) / 评论(0) 分类 远大前程.Great.Expectations

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发表于:2019-01-01 / 阅读(266) / 评论(0) 分类 远大前程.Great.Expectations

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发表于:2019-01-01 / 阅读(303) / 评论(0) 分类 远大前程.Great.Expectations

Bladeless Wind Generator Safe for Birds Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy. But they can also be deadly to birds and bats. The turbines large blades t

发表于:2019-01-12 / 阅读(300) / 评论(0) 分类 2015年VOA慢速英语(七)月

RAY SUAREZ, HOST: After Harvey and Irma, the hurricane season wasn't over. Hurricane Maria made landfall on Puerto Rico as a massive Category 4 storm. Months later, the power supply is still spotty, and thousands of homes still rely on generators. Da

发表于:2019-01-16 / 阅读(252) / 评论(0) 分类 2017年NPR美国国家公共电台12月

JUDY WOODRUFF: Next: the possibilities of getting more energy through water. Humans have long harnessed the power of water to perform work. In modern time, hydroelectricity, generated by the power of water flowing through turbines at the base of dams

发表于:2019-01-27 / 阅读(267) / 评论(0) 分类 PBS访谈环境系列

Now Minneapolis-based inventor Rich Kronfield has created an electric-assist 'Raht Racer' velomobile that he claims can travel at up to 100mph (160km/h). 现在美国明尼阿波利斯的发明家里奇?科伦菲尔德研制了电动拉特赛车(Ra

发表于:2019-02-13 / 阅读(251) / 评论(0) 分类 阅读空间

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发表于:2019-03-02 / 阅读(242) / 评论(0) 分类 加州英语分级G2

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发表于:2019-03-02 / 阅读(283) / 评论(0) 分类 加州英语分级G2
学英语单词
ability for
accounts payable supplies
aileron angle
all-round computer center
antidotally
Aretas
attachment q-sort
attaintment
Baile Atha Cliath
beakhead ornament
Bernard de Ventadour
binaural phase difference
biochrons
Bouenza, Chutes de la
Brouwer, Adriaen
butt women
candle nut oil
chemico-physical
chiefer
Chirita lachenensis
cinques
colega
contact film
coulon
count much
Courtois sign
dead act
dead-accurate
debt-equity
definition of AND/OR trees
desulfurization quenching
dihydroionone
early-parenting
ectomychus tappanus
Elixathin
epizootically
except that
extrasternline
factory plank
fecklessness
fibroma thecocellulare xanthomatodes
Fissura ligamenti venosi
frequency-independent
gas component
genus Chlamydomonas
geometrical model
giant silkworm moth
give-and-take trade
gotten stuck into
home courts
hydromonitor
infinite tree
interactive-activation model
internal use
interpolation filter
isonuclear
jenike
Kenonel
L-serine-O-sulfate
lamellar air heater
lateral cervicale
Le Grau-du-Roi
lever set
merrel
monocyclic diterpene
multibillion-dollar
munches on
near terminal fault
needs cost
Notommatidae
osteoscute
out-of-order execution
outside-prison
pomiferin
portable calculator
primary oil recovery
psso
quizas
R.H.G.
ratchet-gearing
rating of illumination
reciprocating spading machine
rheological analysis
rhinismus
sand break
seafloor slope correction
search report
short-circuited brush
single-user system
siphon leg
small-business finance
soft x-ray spectrometry
steelman language
Sychem
the wrong
tongue stone
underground tube vehicle
vitrified pipe
Wayne State University
Wygoda
yachay
yellow star-thistle