电磁超声换能器

Wk 10 (10 March 1876) Bell Invents The TelephoneThis Week in HistoryAlexander Graham Bell claims to have invented the telephone, but did he? In 1876, Alexander Graham Bell made the first call on an electromagnetic telephone he had built, and went on

发表于:2018-12-27 / 阅读(97) / 评论(0) 分类 英语新闻与报道—News and Reports

(THEME) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Faith Lapidus with the VOA Special English program EXPLORATIONS. You are listening to our program today on a radio. Almost no communication would exist in the world without the electromag

发表于:2019-01-03 / 阅读(135) / 评论(0) 分类 2018年VOA慢速英语(九)月

中文 英文 缩写 电表 ammeter 电场 electric field 电传打字机 teletype/teleprinter 电磁波传播 electromagnetic wave propagation 电磁发射 electromagnetic emission 电磁干扰 Elect

发表于:2019-01-03 / 阅读(97) / 评论(0) 分类 电信英语

Earth Station - The term used to describe the combination of antenna, low-noise amplifier (LNA), down-converter, and receiver electronics that are used to receive a signal transmitted by a satellite.

发表于:2019-01-03 / 阅读(109) / 评论(0) 分类 电信英语

参考范文: This modern life As is shown in the above picture, people sit in front of the computer all day and night, even in their dreams theyre still playing computer games. Such thought-provoking phenomenon is, especially among young people, p

发表于:2019-01-08 / 阅读(119) / 评论(0) 分类 英语四级作文范文

AS IT IS 2014-08-26 Is North Korea Preparing to Strike US Electric Grid? 朝鲜准备打击美国电网吗? A longtime national security advisor to the United States Congress has said the countrys electric system -- called a grid -- is mostly unprote

发表于:2019-01-12 / 阅读(100) / 评论(0) 分类 2014年VOA慢速英语(八)月

By Doug Levine Washington 27 June 2007 It's been more than 15 years since saxophonist Joshua Redman won first prize at the Thelonious Monk International Jazz Competition. That honor proved to be a worthwhile stepping stone, as he went on to record mo

发表于:2019-01-13 / 阅读(148) / 评论(0) 分类 2007年VOA标准英语(六月)

Scientists have solved the mystery behind the brilliant northern and southern light show known as Aurora Borealis. The phenomenon is caused by electromagnetic energy from the sun, which experts say also wreaks havoc on ground-based power grids and s

发表于:2019-01-13 / 阅读(99) / 评论(0) 分类 VOA标准英语2008年(七月)

Pentagon's Electromagnetic Gun Awaits Use Marines stage a scene that has become more frequent for U.S. forces in Afghanistan. The mock protesters are harmlessly dispersed with a high-tech device. It is called the Active Denial System. Using an electr

发表于:2019-01-13 / 阅读(98) / 评论(0) 分类 VOA标准英语2012年(四月)

Chris Hillman Edward Pederson's At Edwards BarnChris Hillman and Herb Pedersen had bluegrass in common when they met as teenagers in Los Angeles back in the early '60s, but the two didn't make much music together until years later. Hillman first came

发表于:2019-01-13 / 阅读(111) / 评论(0) 分类 VOA标准英语2010年(十二)月

Scientists Point to Possible Health Effects of Cell Phones This past May, in a major policy shift, the World Health Organization said electromagnetic fields produced by mobile phones are possibly carcinogenic. Although the International Association f

发表于:2019-01-14 / 阅读(126) / 评论(0) 分类 VOA标准英语2011年(八月)

LOURDES GARCIA-NAVARRO, HOST: If you're familiar with the band Disturbed, you're probably used to hearing them sound like this. (SOUNDBITE OF DISTURBED SONG, INSIDE THE FIRE) GARCIA-NAVARRO: But last year, the band softened its sound when they covere

发表于:2019-01-16 / 阅读(108) / 评论(0) 分类 2017年NPR美国国家公共电台1月

Science and Technology Three-dimensional printing An image of the future 科技 3D印刷 印刷未来 One of the biggest manufacturers in the world gives 3D printing a go 世界龙头机器制造商用3D印刷术进行了一次格外成功的应用 U

发表于:2019-01-26 / 阅读(120) / 评论(0) 分类 经济学人科技系列

第一招:在电脑旁放上几盆仙人掌,它可以有效地吸收辐射。 第二招:对于生活紧张而忙碌的人群来说,抵御电脑辐射最简单的办法就是每天上午喝2至3杯的绿茶,吃一个橘子。 第三招:上网

发表于:2019-02-03 / 阅读(137) / 评论(0) 分类 阅读空间

Science and technology 科学技术 Three-dimensional printing 3D印刷 An image of the future 印刷未来 One of the biggest manufacturers in the world gives 3D printing a go 世界龙头机器制造商用3D印刷术进行了一次格外成功的应用

发表于:2019-02-06 / 阅读(102) / 评论(0) 分类 经济学人科技系列

Abadie's Sign Chinese阿巴迪征(跟腱受压无感觉,见于脊髓痨) Abaptiston Chinese安全开颅圆锯 abarognosis Chinese压觉缺失 abasia astasia Chinese立行不能 abasia Chinese步行不能 abdominal reflex Chinese腹壁反射 abduction Chinese外展 abiotrophy Chinese生活力

发表于:2019-02-07 / 阅读(133) / 评论(0) 分类 英文语法词汇

Idiom: Red carpet ( good treatment ) Hit the book: Parking meter Iconoclast Banish Tattoo Electromagnetic Costly Detriment Landfill Bobble From passports to parking meters, design iconoclast Karim Rashid sees a world overflowing with outdated objects

发表于:2019-02-16 / 阅读(156) / 评论(0) 分类 趣味青春英语

The Way It Goes (Acoustic) - Passenger One man's home is another man's journey Stars shine late and the sun shines early One man's straight and another man's curly It's just the way it goes One man's trash is another man's treasure Rummaging around i

发表于:2019-02-18 / 阅读(111) / 评论(0) 分类 英文摇滚歌曲

What's that?Sort of a shove.Shot passed my legs there. 那是什么 铲子似的东西 从我的腿边游了过去 We need to speed up. Get moving. 得加速了 动起来 Sharks lock on to the electromagnetic fields that all living creatures produce.

发表于:2019-02-24 / 阅读(124) / 评论(0) 分类 荒野求生

On a previous Moment of Science we discussed one of the problems with turning yourself invisible. Sure, it sounds like fun. But a little physics showed us that the invisible man couldn't see anything either, because in order to see, light has to inte

发表于:2019-03-06 / 阅读(154) / 评论(0) 分类 英语时差8,16
学英语单词
adrenosin
allogeneic graft
alternate motion
amico
antiischemic
apoplasts
astrocaryum star-nut plam
avoidance of disposition order
Azaz
baggage box boy
ballast screening
banana-head
bank report
boleys
calmar
character-like code
chased silver
cherry-pick
chucked away
circumtonsillar abscess
columnar pile
commissioner of emigration
common racoons
consanguineus frater
deculturating
dental composite
deploitation
detail(ed) specifications
diabolify
e - book reader
edge control rotary switch
electory
endgate
engagements
entrammeled
Explorer I
feeder network
furnace coolin
great grief
hand-written signature
hatuka
hidro-pepsin
hyomandibular bone
immediate execution
in lovest
information sources
Jekavian
Jurva
kimia
kivu, lake
limp-dicks
linkage phase
loadable device
loop collapsing analysis
Mad as a bag of hammers
make someone's acquaintance
Meta-tyuyamunite
microsomal mixed function oxidase
Millwood L.
monoid-closure
Montbazens
muscidifuraxes
Musculus depressor supercilii
non restoring method
non tariff obstacle
nonarithmetic statement
organic phosphate
orogeny
ozochrotous
paleethnology
partial differential equation of second order
phosphoglucomutase-1
pressure-gas burner
rate of learning
ratio of capital stock to net worth
rebound clip
Republika Srpska
retinervis
Saccharomyces congloberatus
sanluis
sea-borne trade
seabeach cultivator
servogear
side looking
Silal V
stator circuit
straw hat glue
subgrade lesion
supercede
syringadenosus
teaching content
teleprompted
teratoglaea hohuanshanensis
tournefortia montana lour.
tungsten deposit
uncertainty element
ungangrened
unrepining
vibraharp
weak sight
William Clito
Zamo