等幅波信号发生器

1) Entrepreneurs are spending millions to create for-profit universities of the Internet, and the smart money is betting that by the time your middle schoolers go off to college, they may not really g

发表于:2018-11-28 / 阅读(208) / 评论(0) 分类 疯狂英语2002年

Catchawaveandyouresittin Ontopoftheworld Dontbeafraidtotrythegreatest Sportaround (Catchawave,catchawavenow) Thosewhodontjusthaveto Putitdown Youpaddleoutturnaroundandraise Andbaby Thatsallthereistothe Coastlinecraze Catchawaveandyouresittin Ontopoft

发表于:2018-12-06 / 阅读(134) / 评论(0) 分类 美国 Kidsongs 英语儿童歌曲

It starts with a blip, a beep, a noise, a pattern, a signal. It could be anything - ink on paper, machine data, or even the words flowing through your minds right now. Signal generators play an important role in testing devices we use every day. The

发表于:2018-12-11 / 阅读(172) / 评论(0) 分类 英语解说豆知识2011年

One of the newest sources of alternative energy is also one of the oldest - water power. The 19th century water wheel, though, bears no resemblance to the 21st century contraptions powered by ocean waves. The wave energy sector has been slow to coale

发表于:2018-12-16 / 阅读(128) / 评论(0) 分类 VOA标准英语2010年(十一)月

现在完成进行时(The Present Perfect Continuous Tense)表示由过去某时持续到现在的动作,由have(has)been+现在分词构成: It has been raining for three hours. 一连下了三个钟头的雨。 She has been working the whole mo

发表于:2018-12-18 / 阅读(141) / 评论(0) 分类 英文语法词汇

[00:10.06]Gehrig continued to improve as a player. [00:14.05]By 1924, pitchers for opposing teams were having bad dreams about Lou Gchrig and Babe Ruth. [00:23.04]Ruth hit sixty home runs that year. [00:26.36]Gchrig hit forty seven and won the Americ

发表于:2018-12-26 / 阅读(174) / 评论(0) 分类 美国英语听力80篇

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 long [ lCN ] I longed for a bicycle. v

发表于:2018-12-30 / 阅读(194) / 评论(0) 分类 每日攻克5词

CatchAWave Catchawaveandyouresittin Ontopoftheworld Dontbeafraidtotrythegreatest Sportaround (Catchawave,catchawavenow) Thosewhodontjusthaveto Putitdown Youpaddleoutturnaroundandraise Andbaby Thatsallthereistothe Coastlinecraze Catchawaveandyouresitt

发表于:2018-12-31 / 阅读(211) / 评论(0) 分类 美国 Kidsongs 英语儿童歌曲

Focal Length - Distance from the exact center of the dish to the center of the feed. Focal Point - The physical point in space toward which the satellite reflector dish directs the received signal so

发表于:2019-01-03 / 阅读(155) / 评论(0) 分类 电信英语

D type Channel Bank A D type channel bank is channel termination equipment used for combining (multiplexing) individual analog channel signals on a time division basis. D type channel banks provide in

发表于:2019-01-03 / 阅读(216) / 评论(0) 分类 电信英语

China's weather observatory has issued a blue alert for a cold wave in the coming two days that will sweep central and east China. The National Meteorological Center forecasts sharp temperature drops of up to 10 degrees Celsius and heavy wind to Inne

发表于:2019-01-05 / 阅读(178) / 评论(0) 分类 cctv9英语新闻2015年

今天我们要学的词是heat wave。 Heat wave, 热浪,高温天气。 A heat wave is sweeping the Northeastern region of the United States, 美国东北部地区普遍出现高温天气。 The heat wave could be a record-breaker, 这次高温天气

发表于:2019-01-07 / 阅读(182) / 评论(0) 分类 英语单词荟萃

今天我们要学的词是heat wave。 Heat wave, 热浪,高温天气。 A heat wave is sweeping the Northeastern region of the United States, 美国东北部地区普遍出现高温天气。 The heat wave could be a record-breaker, 这次高温天气

发表于:2019-01-07 / 阅读(174) / 评论(0) 分类 英语每日一词

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(197) / 评论(0) 分类 2015年VOA慢速英语(七)月

MICHEL MARTIN, HOST: Let's talk midterm elections now. The enthusiasm of Democrats is a major force shaping this year's crop of candidates. Among the results of a newly energized Democratic Party, far more women are running and expected to run in thi

发表于:2019-01-16 / 阅读(201) / 评论(0) 分类 2018年NPR美国国家公共电台3月

BEIJING, March 13 (Xinhua) -- Both China and U.S. signaled that the world's two biggest economies should explore a road of new-type relations. The new type of relations between major powers should be based on mutual respect, cooperation and seeking w

发表于:2019-02-03 / 阅读(154) / 评论(0) 分类 英语新闻

BEIJING, Sept. 26 (Xinhuanet) -- Weather forecasts showed that Thursday or Friday might be suitable for launching the Tiangong-1 spacecraft, experts said. The unmanned spacecraft, part of China's first spacecraft rendezvous and docking mission, was s

发表于:2019-02-03 / 阅读(226) / 评论(0) 分类 英语新闻

Google's DeepMind have revealed a new speech synthesis generator that will be used to help computer voices, like Siri and Cortana, sound more human. 谷歌旗下的人工智能公司DeepMind近日研制出了一种新型语音合成系统, 该技术可

发表于:2019-02-18 / 阅读(130) / 评论(0) 分类 英语新闻

Sunrise... sunset One day I just can't forget. I follow you... you follow me We left footprints on the beach... You're so wrong... you're so right I can see us bathing in the moonlight Can you... can you... see... see it... see it too? (This is what

发表于:2019-03-04 / 阅读(264) / 评论(0) 分类 节奏布鲁斯

Key Sentences(重点句子) 146.The connection was bad. 通话情况很糟。 147.There was a lot of echo and I couldn't hear well. 回音太多,我听不清楚。 148.I'll connect you agian. 我再为您接通一次。 149.I've just

发表于:2019-03-11 / 阅读(244) / 评论(0) 分类 实用英语
学英语单词
absorptive scale
basion
benzdine
bone marrowdependent lymphocyte
central-line load
centrifugal purification
Cherkasovo
cold receptors
contemporary psychology
conterminant
control message
core vibration
cubitoradial
cylindrical insulator
damaged pack
delay effect
democratization
desertlime
draw box
Edmund II
electrostatic system of units
eri silk
expostulate with
farters
finishing with
flight Mach number
forlis
fulgure
furogen sand
glacery
glass microball reflector
grounded-grid triode circuit
hesmosis
hexahydroxy-stearic acid
hypocrea jecorina
infanticide by violence
intersectin
intestinal colics
Jacobinism
khidmutgar
lark bunting
laryngeal reflex
lilies-of-the-valley
limit of detectability
liquid overflow
lithium germanium oxide
Lophatherum gracile Brongn
Lorrainians
low grade coal
macinnis
manufacturing cycle
melanostictus
misogi
misthrows
model of the galaxy
molding time
molecular field method
mononuclear leukocytosis
Mortsel
Mountlake Terrace
nanis
netspeak
non-consumptions
North Ndebele
open-pit crawler downhole jumbo
outplotted
paddle-like
panyar
pictum
popkiss
possession by supraeconomic measures
Poviral
power-dive
precognition
preparatoria
Primula humilis
process gas scrubber
prossies
protective coatings
Prutz
regular hexagon
resistance alloys
restoration control
rigney
roentgendosis
search-oriented architecture
septum sinuum sphenoideorum
serratus anterior muscle
shuttle point
sinnses obliquus pericardii
sneb
spiegel cupola
St-Pardoux
steam train
subharmonic phase-locked oscillator
surplus lines insurer
sustaining voltage of counting tube
take after
third party attachments
trisilanyl
up set down
wet precipitation