摄像管的场致发射

Dad, Can You Tell Me How to Get Rich? My dad put down the evening paper. Why do you want to get rich, son? Because today Jimmy's mom drove up in their new Cadillac, and they were going to their beach house for the weekend. He took three of his frien

发表于:2018-12-06 / 阅读(153) / 评论(0) 分类 动物街64号 Zoo Lane 第一季

By Paul Sisco Washington D.C. 24 January 2008 Wing Power, wave power, people power. Italian inventor Lucien Gambarota tries to capitalize on all three. VOA's Paul Sisco explains in this week's Searching for Solutions report. Lucien Gambarota is a vis

发表于:2018-12-16 / 阅读(168) / 评论(0) 分类 VOA标准英语2008年(一月)

Lesson 97 The Body 第97课 人体 If you wish to keep your body healthy, you must learn something about its inside as well as about its outside. 你想要有一个健康的身体, 那就不仅需要了解它的外部结构, 更要明白它的内在构

发表于:2018-12-18 / 阅读(103) / 评论(0) 分类 英国学生科学读本

插座、插头和其它连接物(电器连接) Sockets, plugs and other contacts [electric connections] 插头、插座及其他接触器(电接头) Plugs, sockets and other contacts [electric connections] 表面覆有带电导体的玻璃 Glass

发表于:2018-12-18 / 阅读(134) / 评论(0) 分类 英文语法词汇

Bottled water companies often brag about the purity of their drinks. Just imagine if they found a water source that's been cut off from the outside world for well over a billion years. Well, scientists have discovered just that, in isolated reservoir

发表于:2018-12-24 / 阅读(119) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Asbestos increases the risk for certain cancers. The fibers are thought to do so by skewering cells, setting off chemical reactions that lead to inflammation,

发表于:2018-12-24 / 阅读(163) / 评论(0) 分类 Scientific American(九)月

Elon Musk's Hyperloop is getting its first working test track When Elon Musk, the PayPal billionaire, announced his plans for a near-supersonic transport system of passenger capsules levitating inside tubes it sounded like science fiction. Now the co

发表于:2018-12-28 / 阅读(102) / 评论(0) 分类 英语PK台

Do you resemble someone famous? Jo: Hello, this is Real English from BBC Learning English, Im Jo. Sun Chen: 嘿,你好吗?我是孙晨。 Jo: In Real English, we look at words and phrases that you might not find in your dictionary. Sun Chen: 你是不是已经发

发表于:2019-01-02 / 阅读(172) / 评论(0) 分类 地道英语在线听

85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson (Start at 1'04

发表于:2019-01-02 / 阅读(211) / 评论(0) 分类 科技之光

By Ted Landphair Big corporations use memorable slogans or symbols -- like the

发表于:2019-01-03 / 阅读(175) / 评论(0) 分类 VOA2004(下)--文化艺术

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(208) / 评论(0) 分类 Scientific American(四)月

drain作名词的时候可以指下水道。看见go down the drain这个习惯用语,你头脑里可能会出现这样的情景:有个人在洗澡的时候不小心把手上的钻戒滑落到浴缸排水孔里,在他还没来得及作出反应的

发表于:2019-01-08 / 阅读(129) / 评论(0) 分类 美国俚语

Todd: OK so, here we go, now Terry you were saying that you went from Vancouver to San Diego. How many days did that take? Terry: Um, the total trip took 42 days but that included one day on the bus up and then one day on the bus back so 40 days on t

发表于:2019-01-08 / 阅读(144) / 评论(0) 分类 原版英语对话1000个

我们前两次讲了几个带有up这个词的习惯用语。今天要讲的习惯用语却都有和up相对的词: down。 Down这个词最常用的解释是往下。 比方说在今天要学的第一个习惯用语里:go down the drain。 Drai

发表于:2019-01-14 / 阅读(195) / 评论(0) 分类 美国习惯用语

By Nancy-Amelia Collins Bali, Indonesia 13 December 2007 The head of the United Nations Climate Change Conference is warning that a deadlock between the United States and the European Union over greenhouse gas emission targets may derail the conferen

发表于:2019-01-16 / 阅读(159) / 评论(0) 分类 VOA常速英语2007年(十二月)

类缘何而来?猩猩?还是猿?要追溯到更远的话,应该是单细胞生物吧! 纳尼!还不对? 那究竟是什么呢? 今天的节目将为您讲述生命的起源 Life Traces in Lava Don: Can I ask you something, Ya?l? Ya?l

发表于:2019-01-26 / 阅读(116) / 评论(0) 分类 英语听力文摘 English Digest

大家都知道spit的意思是“唾液”。可奇怪的是,有一个和spit相关的词组spit and image的意思却是“和……一模一样的(人或东西)”。 语源学界普遍接受的

发表于:2019-01-31 / 阅读(178) / 评论(0) 分类 英文语法词汇

今天我们要讲的两个习惯用语有同样的意思。它们都用来说某一个人非常像另一个人。第一个习惯用语是:dead ringer。 Ringer原来意思就是酷似某人的人或者很像某物的东西. Ringer有时可以指冒名

发表于:2019-01-31 / 阅读(255) / 评论(0) 分类 美国习惯用语

CHENGMAI, Hainan, Dec. 9 (Xinhua) -- As China seeks to shake off its image of the world's mass-producer of cheap products and move up the value chain, Chinese companies are trying to reshape their reputations in the international market to win accept

发表于:2019-02-07 / 阅读(169) / 评论(0) 分类 英语新闻

The Chinese government is accusing Japan of intentionally tarnishing China's image. The accusation comes following reports that a Chinese vessel put a radar firing lock on a Japanese naval patrol in the East China Sea this week. Chinese foreign minis

发表于:2019-02-21 / 阅读(147) / 评论(0) 分类 英闻天下
学英语单词
a lobster
acid cooled rocket engine
air-cooled desuperheater
amorphous wax
ascertaineth
b.a
bactrocera papayae drew et hancock
boom chain
Bowman-Birk(soybean)inhibitor
broadbrim
budget dynamics
cable plate
caecus minor ventriculi
card feeder
cardiums
Castanopsis chrysophylla
Catalanization
charterer member
ciliary process
circumfluous
colpolaparotomy
commercial success
decacyclic
diarylhydrazine rearrangement
disemvoweling
dispensatrix
distilled gin
do you like
doulukka (sudan)
down-at-heel
drill steel sharpener
dryopteris serrato-dentata
e.r.v.
epithelial attachment cell
equity
Erysimum repandum
exclusive bus lane
filariasis perstans
fine turning lathe
Fisher's transformation
fluid four
gaysians
glue logic
grid induced noise
helical crimp
Heligolandic
hymenomycetous
hyperthyoidism
i-telded
infostructure
Kappa-725 resonance
kararfveite (monazite)
l'age
littoral dune
magnetic induction accelerator
man in machine out
milfoil
ministerial responsibility
misascribe
modular ring
non-retrospection
nontranslational region of gene
original resident
Otary
perirolandic
phase-plane plot
picking strap
pigment padding
prasinite
programme
qigong mechanism
return flow tunnel
rust inhibiting oil
safe shutdown
segmented condensation method
shelter forest station
shunt trip
slough grass
someone is going places
spinsterdom
squamous cell carcinoma of bladder
St-Pierre-de-Trivisy
ST_order-and-sequence_before-after-and-already
subshifts
sulfatize
São Sebastião de Tapuru
TA-2407
Tag-Robinson colo(u)rimeter
Tamarix taklamakanensis
tortiloquy
tracings
TTNA
tuyere ratio
U.T.W.A.
umlungu
universities of nebraska
update transactions
vacate office
vehicle register
volendam
voluntariate
Vouet, Simon