超声波发射换能器

LESSoN EIGHT TEXT Telecommunication via Satellite At the beginning of the twentieth century, there were four powerful means of transmitting and receiving information over long distances: print, photog

发表于:2018-12-01 / 阅读(148) / 评论(0) 分类 自考英语(一)78讲

Traditional Shaman Ceremony Attracts New Yorkers Spiritual seekers and the merely curious participate in the ancient Incan ceremony, conducted by Jesus Aguilar, a Peruvian healer-priest called a shaman. Aguilar moved from Cusco, Peru, to New York wit

发表于:2018-12-16 / 阅读(77) / 评论(0) 分类 VOA标准英语2012年(十月)

Tiny Bubbles Turn Water Into Effective Cleaning Tool 小气泡把水变成有效的清洁工具 While a stream of ordinary cold water may clean some dirt it is not considered an effective cleaning agent. But when two inventors at the University of So

发表于:2018-12-16 / 阅读(58) / 评论(0) 分类 VOA标准英语2015年(十一月)

welcome to our march 17 addition of cnn students news, I am coarl zoos, first up, voters in Crimea voted yesterday, and overwhelmingly chose to become part of Russia, the local government sending its delegation to Moscow to apply for that, Russia wel

发表于:2018-12-19 / 阅读(85) / 评论(0) 分类 CNN2014年(三)月

This one is from Ruth! Is it a toy? What is it?! It's a penis! Penis! Penis! Well, well, okay... Give me that! Jen! I'm just helping that kid with the pinata. - Okay. - I'll show you how it's done, kid. Debster! You need drinks tonight. We don't do t

发表于:2018-12-28 / 阅读(52) / 评论(0) 分类 英文电影预告片填空

After meeting the foster moms, we all walk to the actual orphanage where Marissa was brought as a baby. We're told there are about 500 children living at this orphanage. There are tens of thousands of children just like them across China. All around

发表于:2018-12-30 / 阅读(53) / 评论(0) 分类 国家地理2007年

Doctors Have a New Tool to Identify Breast Cancer Breast cancer is the most common cancer in women worldwide. Early discovery and treatment can save lives. Scientists are working new ways to recognize breast cancer while at the same time studying exi

发表于:2019-01-03 / 阅读(66) / 评论(0) 分类 2018年VOA慢速英语(一)月

Rob: Hello, I'm Rob and this is 6 Minute English and I'm joined this week by Finn. Hello Finn. Finn: Hello Rob. Rob: We are in a celebratory mood this week Finn aren't we? Finn: Yes we are. We have something to shout about - it's the 70th anniversary

发表于:2019-01-07 / 阅读(105) / 评论(0) 分类 六分钟英语

An official in Wisconsin says at least five people have been killed in a shooting rampage in northern Wisconsin. It happened in Crandon about 225 miles north of Milwaukee. President Bush paid honor to the men and women who put their lives on the line

发表于:2019-01-08 / 阅读(130) / 评论(0) 分类 美联社新闻一分钟2007

超声成像 ultrasonic imaging 实时成像 real-time imaging 灰阶显示 gray scale display 彩阶显示 color scale display 经颅多普勒 transcranial doppler 彩色多普勒血流显像 color doppler flow imaging 彩色血流造影 color flow

发表于:2019-01-08 / 阅读(105) / 评论(0) 分类 医学英语

Health Report - How Early Treatment Can Limit the Spread of HIV This is the VOA Special English Health Report. For people infected with HIV, the earlier they start treatment, the better -- and better not just for them. A new study shows that early tr

发表于:2019-01-12 / 阅读(82) / 评论(0) 分类 2011年VOA慢速英语(五)月

High Intensity Focused Ultrasound Used to Kill Cancer Tumor 高强度聚焦超声治疗恶性肿瘤进展 LOS ANGELES, CA There is a new way of killing certain cancer tumors that allows the patient to go home on the same day. Surgeons at the Keck Med

发表于:2019-01-14 / 阅读(68) / 评论(0) 分类 VOA标准英语2014年(九月)

We brought it on air in November 2009. 我们在2009年11月的时候播出了这个节目。 But no, this was far more attractive. 但其实,这节目火了起来。 This is the five biggest TV channels in Norway on a normal Friday, 这张图是挪威

发表于:2019-01-18 / 阅读(85) / 评论(0) 分类 TED演讲娱乐篇

小小泡沫把普通水变成强力清洁剂 While a stream of ordinary cold water may clean some dirt it is not considered an effective cleaning agent. But when two inventors at the University of Southampton added a little ultrasound the water beca

发表于:2019-01-19 / 阅读(68) / 评论(0) 分类 VOA双语新闻 2015年11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(94) / 评论(0) 分类 经济学人科技系列

By Carol Pearson Washington 14 May 2008 Doctors say mammography is the best way to find breast cancer before it gets a chance to spread. But mammograms can miss some cancers, especially for women with dense breast tissue. Now, a new study shows for t

发表于:2019-02-02 / 阅读(67) / 评论(0) 分类 VOA标准英语2008年(五月)

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(71) / 评论(0) 分类 经济学人科技系列

第五句型:主语 + 及物动词 + 宾语 + 宾语补足语 先回顾一下本讲第一节中有关宾语和宾语补足语的概念。 这个句型也是考试的重点,主要有三个难点: 1) 要不要 to的问题: The director wants

发表于:2019-02-20 / 阅读(86) / 评论(0) 分类 实用英语

Ana: Hey, Michael. I heard your mom is a zoologist. What is it exactly? Mike: A zoologist. Well, that's true. She is a zoologist. So a zoologist is someone who studies animals. Ana: Oh, interesting. So does she study all animals or does she focus on

发表于:2019-02-27 / 阅读(96) / 评论(0) 分类 英语趣味课堂

We have multiple failures on the inertial reference system. We are no longer able to fly oceanic route. Request return for landing. 481. 我们有多个惯导失效,我们不能再跨洋飞行,申请返场着陆。 We do not meet GPS approach req

发表于:2019-03-10 / 阅读(367) / 评论(0) 分类 飞行员英语900句
学英语单词
abet sb.in a crime
abu ali i.
accommodation platform
acetylfluorene
affairs connected with infectious diseases
Ahtna, Ahtena
alloy diffused-base transistor
ammonia dissociation separator
aryl migration
attitude measurement
automatic lexical coding
automatic submerged slag welding of rail
avocets
bacterioagglutinin
bituminous industry
bureaucratic incapacity
busy channel
calcium magnesium alloy
Calvinisms
ceremonials
chemical mechanical polishing (cmp)
combustor
computer hospital care
diatropic plane
domestic money order
double diploid
electromagnet bearing
enhigh
Erethisma
error logging subsystem
eruptive hidroadenoma
ethylene cyanohydrin
feloids
ference
field descriptor
filtra-tion
finger-length
firmware monitor
fore-topgallant mast
gravitational pressure drop
handsel
Hauho
horizontal ladder
hug yourself
Ipomoea nil Roth.
item non-response
jocastas
join the colors
lean enterprise
low water ordinary springs
masking blade
messaggero
Methyl-4-hydroxybenzoate
millennia
minimal essential completeness
mucoid softening
N-benzylacetamide
nonperformances
nuclear composition
number of replications
outside spin
oxborrows
paraffinoma
Parties of Charter Party
pentroofs
piss yourselves
plenum chamber hovercraft
positive pole sensitivity
pulse-counting system
quenching crack susceptibility
rapid digestion of food and polyorexia
re description
revolving tube carrier
rotary vibratory fine screening
Schouten I.
Setchenow's(Sechenoff's)c's
sfsrsesnscshs-s
Shaykh Idrīs
six-pieces
sniffeth
spherical pivot four bar mechanism
spindle-cell carcinoma
Spirochaeta pallidula
staedlers
static cultivation
stationary wave field
stratospherical
system programs
taonius pavo
ten minute rule
territorialising
trailer camps
train-drivers
transfer functions
transience
Turkic-speaking
unexileable
United States Commercial Company
useful animals
velocity pole
wainscot panel
work obligation