n. 活镜筒;显微镜抽筒
[网络] 伸缩管;目镜套筒

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(173) / 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(188) / 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(117) / 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(150) / 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(142) / 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(190) / 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(116) / 评论(0) 分类 英语PK台

[00:00.00]It's quite easy,isn't it? [00:03.10]Do you want to make one? [00:05.07]Sure.I'll get some paper, [00:07.32]colour pencils and scissors. [00:10.00]Good.Then we can take our planes [00:12.30]to the park and fly them there. [00:15.14]I think m

发表于:2018-12-29 / 阅读(197) / 评论(0) 分类 外研社新标准初中英语九年级

今天学的词组是drawdown。 Drawdown指水库等由于抽水而降低水位。 Drawdown也有减少的意思。比如美国人在是否减少驻伊拉克军队的问题上意见分歧, The nation is divided on the drawdown of troops. 以前国务卿

发表于:2018-12-30 / 阅读(154) / 评论(0) 分类 英语每日一词

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(227) / 评论(0) 分类 科技之光

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(219) / 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(163) / 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(169) / 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(215) / 评论(0) 分类 美国习惯用语

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(132) / 评论(0) 分类 英语听力文摘 English Digest

Milan draw 2-2 with Palermo ROME, Oct. 30 (Xinhua) -- AC Milan fought back from 2-0 down to salvage a 2-2 draw at Palermo in a Serie A match on Tuesday. Fabrizio Miccoli converted a penalty to cap a strong first half for the home team before Franco B

发表于:2019-02-05 / 阅读(181) / 评论(0) 分类 英语新闻

RIO DE JANEIRO, June 7 (Xinhua) -- Vagner Love scored an injury-time equalizer on Wednesday as Flamengo earned a 2-2 away draw against Ponte Preta in Brazil's Serie A championship. Playing in its first match since Ronaldinho quit and sued the club fo

发表于:2019-02-18 / 阅读(161) / 评论(0) 分类 英语新闻

RIO DE JANEIRO, July 30 (Xinhua) -- With the world watching the 2014 FIFA World Cup Brazil Preliminary Draw in the city of Rio de Janeiro, protestors took to the streets on Saturday. A variety of causes took people to the Gloria Marina, the location

发表于:2019-02-18 / 阅读(143) / 评论(0) 分类 英语新闻

RIO DE JANEIRO, Feb. 5 (Xinhua) -- Under the watchful eye of Flamengo's new head coach Joel Santana, the team battled to a scoreless draw against rival Botafogo on Sunday in the first half of the 2012 Rio de Janeiro state championship. Despite a matc

发表于:2019-02-18 / 阅读(137) / 评论(0) 分类 英语新闻

Allegri rues Milan's draw with Parma MILAN, Sept. 29 (Xinhua) -- AC Milan head coach Massimiliano Allegri was disappointed that his side failed to win the match against Parma in the Italian Serie A on Saturday, but praised their performance in the 1-

发表于:2019-02-18 / 阅读(204) / 评论(0) 分类 英语新闻
学英语单词
agro-chemical
antisidetone telephone set
arriuall
basic tooth profile of bevel gears
be mixed with hydrogen and oxygen
Bourbons
cagefuls
Calceta
Caytoniales
Cegamite
chordae posterius iter
colored finish
combing out
COSTACO
crew cuts
daily maximum
dambreuse
db/hz (decibe/hertz)
deoxyribonucleic acid virus
diabolists
different factors
disodium phenyl phosphate
Dolmante
drynursed
Elatostema myrtillus
emul
epididymosomal
exchange stabilization account
floating item
forge coke
frosted bat
G-MED
galactic cepheid
gastralgic
geodesic longitude
Gomel
grain bottom auger
have a flat tire
Herblock
in-phase loss
inguinal pouch
jacket-steam
Khasan'ya
kidney portal system
large-scale-integration (lsi)
laugh against one's will
law of least action
learn a lesson
Leibnizians
liver cavity
macroporous ion exchange resin
meddleth
media-based
mesocycle
multiterminal HVDC transmission system
multivariable variants
mute cancel
ncnw
Niragongo
Obolella
old banger
orchiepididymitis
oryctere
overhead line pole
parastata cirsoides
Pauly's point
physical separation
piezoelectric equations
pin lift pattern stripping arrangement
pipation
pointed twill
polystichopsis dimorphylla shieh
pseudocellula
public enemy number one
qmp
reaction to pests
Resina Liquidambaris
Roros
secondary chord of the seventh
secretory vacuole
selection lever
shotcrete dust
sludge ladle
space of lines
sphenoethmoidal synchondrosis
strain gauge bridge
struma congenita
surgical restraint
syndiazo compound
terpin hydrate
thoracalgia and dorsalgia
track pin head
Typha domingensis
Upton Magna
ureteroscopy
verriers
water-methanol injection
wax print
weight table
wheel plough
white-on
wine-colored,wine-coloured