直接放大

Splendid! He kept his telescopic cameras carefully aimedglued to their moving objective; 精彩片他小心地调着望远摄影机的镜头,盯紧了那移动着的对象。 clapped on a higher power to get a close-up of the frantic and distorted

发表于:2018-12-07 / 阅读(118) / 评论(0) 分类 美丽新世界

EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(122) / 评论(0) 分类 2013年VOA慢速英语(二)月

BBC News with Julia Candler. A senior member of North Koreas government has warned that his country would react with a pre-emptive nuclear strike if it saw signs that the US was preparing to launch an attack. Speaking to the BBC, the Vice Foreign Min

发表于:2018-12-20 / 阅读(139) / 评论(0) 分类 中英双语新闻

This is Scientific American's 60s Science. I'm Karen Hopkin. This will just take a minute. Think about the tools used by biologists, perhaps test tubes and microscopes come to mind. But what about diapers? No, it's not the investigators in their work

发表于:2018-12-24 / 阅读(161) / 评论(0) 分类 2015年Scientific American(一)月

释义: get something straight 矫正,确认 get sth straight 表示矫正,确认是不是事实(make sure sth is true)。多用成 Let me get sth straight 的形态,主要使用在未能理解对方的意思或想要重新确认一下的情形

发表于:2018-12-27 / 阅读(112) / 评论(0) 分类 外国人日常短语

Who has a straight face? Vicki: This is Real English from BBC Learning English. Im Vicki. Chen Li: 我是陈鹂。 在今天的节目中, 我们要学的是什么呢? Vicki: Todays new expression is keep a straight face. Chen Li: Keep a straight face. 你能解释一下吗?

发表于:2019-01-02 / 阅读(156) / 评论(0) 分类 地道英语在线听

In my lab, we recently made a cancer nanodetector 在我的实验室,我们最近研制出了一种癌症纳米检测器, that is so small that it could travel into the body and look for tumors. 小到可以进入全身血液循环并寻找肿瘤。

发表于:2019-01-03 / 阅读(137) / 评论(0) 分类 TED演讲科学篇

QINGDAO, China, May 29 (Xinhua) -- China was crowned the Sudirman Cup world mixed team badminton champion for the fourth straight time by cruising past Denmark 3-0 here on Sunday. It is China's second fourth straight win at Sudirman Cup as the powerh

发表于:2019-01-07 / 阅读(172) / 评论(0) 分类 英语新闻

我们今天要说的三个习惯用语都用来描绘人的忠诚可靠,不偏不倚和品行端正。第一个是: straight arrow。 Straight是直的,而arrow是箭,straight arrow从字面上看是笔直的箭,straight arrow,宁折不弯,

发表于:2019-01-07 / 阅读(169) / 评论(0) 分类 美国习惯用语

PCRthe polymerase chain reactionis a crucial tool. The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases. To give researchers more genetic material to work with, a PCR instrument repeatedly heat

发表于:2019-01-08 / 阅读(132) / 评论(0) 分类 Scientific American(十)月

This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec

发表于:2019-01-08 / 阅读(136) / 评论(0) 分类 Scientific American(三)月

The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

发表于:2019-01-12 / 阅读(183) / 评论(0) 分类 2013年VOA慢速英语(五)月

EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one

发表于:2019-01-12 / 阅读(152) / 评论(0) 分类 2012年VOA慢速英语(一)月

'Word on Street' Impacted Language in 2011 While 2011 is over, some of the words that came to define the past year are still very much with us, and may be for years to come. Since 2011 was an especially busy year for grassroots political action, many

发表于:2019-01-13 / 阅读(105) / 评论(0) 分类 VOA标准英语2012年(一月)

Because of course, the ear is, I mean, subject to all sorts of things. 这当然是因为,我是说,耳朵受制于很多因素。 The room we happen to be in, the amplification, the quality of the instrument,the type of sticks...etc., etc. 我们现

发表于:2019-01-18 / 阅读(117) / 评论(0) 分类 TED演讲国际问题篇

Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the science of the future to eve

发表于:2019-01-24 / 阅读(173) / 评论(0) 分类 英语语言学习

By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti

发表于:2019-01-31 / 阅读(157) / 评论(0) 分类 VOA常速英语2007年(十一月)

Nobel in Physics for Controlling Laser Light 诺贝尔物理学奖颁给激光控制实验者 The main practical application of CPA so far has been in the eye surgery. It was the first one, and I think it is the one that is used by the most people fo

发表于:2019-02-14 / 阅读(172) / 评论(0) 分类 2018年科学美国人10月

释义: get something straight 矫正,确认 get sth straight 表示矫正,确认是不是事实(make sure sth is true)。多用成 Let me get sth straight 的形态,主要使用在未能理解对方的意思或想要重新确认一下的情形

发表于:2019-02-19 / 阅读(146) / 评论(0) 分类 老外最常用的英文短语

The Revolution in American Higher Education To produce the upheaval in the United States that changed and modernized the domain of higher education from the mid 1860's to the mid 1880's, three primary causes interacted. The emergence of a half dozen

发表于:2019-02-25 / 阅读(152) / 评论(0) 分类 双语有声阅读
学英语单词
adaptation reaction
albensis
amphoric voice
asymmetric double gate mosfet
ATMP
auriscopic
auto-covariance
back-up memory
barrels per stream day
billfishing
black pea
block heaters
bookmakings
cathypnosis
celiac lymph nodes
climate reconstruction
cola
Corydalis iochanensis
dampproof
dartlike
date of grant
deep cutaneous cancer
deep welding
definition of graph-search control strategies
desaltification
despumed
dichters
did (direct inward dialing)
diving hat
erythrocytic schizogony
fallacious
farrisite
feel acute distress at
first normal form
flesh-hook
foreign arbitral award
gas scrubbing tower
get into trouble
gilmanton
gilt-edged share
gravy jobs
gravy noodles
gyration
high thrust reactor
hind ends
holdouts
imprecisely
indurative mediastinitis
information prior
insert process
instant dessert
invents
Kiliani aluminum process
kynan
Leptochariini
loeffler
mandibular bones
manufacturers standard
Mästerby
namias
natrix piscator
net-present-value
network extender
nuclear fluorescence analysis
optimum level of population
originates in
palo duro canyon
Paswāl
payouts
peg-legs
pin gear
pinkers
plunger carrier
ply steel
putzel
radwaste building sump
requit
rubber-tyred
rudimentary character
scraggy
secondary boiler
self-extinction of arc
sense digit line
sgraffiti
showalter
skeletonizations
skin(test)
symphysis of jaw
synchronous flow
tarsius
teller/dispenser units
tin metallurgy
train shunt resistance
translational fault
unteaching
upper control limit
urgent care centre
ventricular ectatic aneurysm
videocams
waltzed
yeender