多级放大

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(128) / 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(129) / 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(149) / 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(188) / 评论(0) 分类 2015年Scientific American(一)月

听广告学英语:RICHON Aficio Digital Multi-function System理光数码多功能系统 原文:Mary:Everybody calls me a multi-function secretary. One of her bosses (gives her a pad of paper):Mary, pick up this. Mary:Because I have to serve several bosses. Anothe

发表于:2019-01-02 / 阅读(263) / 评论(0) 分类 听广告学英语

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(149) / 评论(0) 分类 TED演讲科学篇

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(142) / 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(145) / 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(192) / 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(165) / 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(114) / 评论(0) 分类 VOA标准英语2012年(一月)

嫦娥二号 Chang'e-2(moon probe) 神舟七号 Shenzhou VII (spacecraft) 载人飞船 manned spaceship/ spacecraft 载人航天 manned space flight 多人多天太空飞行 multi-manned and multi-day space flight 载人航天计划 manned space

发表于:2019-01-17 / 阅读(131) / 评论(0) 分类 阅读空间

有关航空航天英语词汇 神舟七号 Shenzhou VII (spacecraft) 载人飞船 manned spaceship/ spacecraft 载人航天 manned space flight 多人多天太空飞行 multi-manned and multi-day space flight 载人航天计划 manned space program 航

发表于:2019-01-17 / 阅读(150) / 评论(0) 分类 实用英语

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(126) / 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(193) / 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(166) / 评论(0) 分类 VOA常速英语2007年(十一月)

low Earth orbit 近地轨道 lunar module 登月舱 lunar rover 月球车 main landing field/ primary landing site 主着陆场 manned space 载人航天计划 manned space flight 载人航天 manned spaceship/ spacecraft 载人飞船 Milky Way 银河系

发表于:2019-02-03 / 阅读(147) / 评论(0) 分类 英文语法词汇

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(192) / 评论(0) 分类 2018年科学美国人10月

Its almost common for a video game nowadays to have several different endings depending on the players choices during gameplay. 眼下,电子游戏厂商们大都会根据玩家喜好在游戏中设置一系列开放式的结局。 Now, these multi

发表于:2019-02-21 / 阅读(183) / 评论(0) 分类 中英双语新闻

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(164) / 评论(0) 分类 双语有声阅读
学英语单词
a tight ship
a. auricularis profunda
agrophytes
anionic surface-active agent
Arabopo
art deco
at that stage
block-square
CD (coastdown)
Cetacaine
charterparty
chlorosomes
circumzenithal
Co-ATP
Coxistat
credulency
critomancy
cumulative pitch error
customs clearer
cyclosa confusa
dad-gummed
dial ystem
display subroutine
epicranial lobe
ergokryptine
exchange scattering
exogenous nitrogen metabolism
free storage area
furoxan
Gg4Cer
girlify
gll. sudorifer? majores
government final consumption expenditure
green briquette
guessive
high front manger
honeyfuggling
indirect splice
isotypematched
James-Lange theory
jet aeroplane
julio de castilhos
kafura (kifura )
Kocha-gundo
Kotovka
least significant position
lehr minder
macrosomite
maximum operating efficiency
Minnesotan, Minnesotian
minus blue
minzi
muffrone
national security
Navajo Point
neoplamius endoi
Nobepyrol
nose-loader
oh mother
oste-
Parallels Desktop for Mac
phasor equation
photochromatic camouflage material
piezoresistive effects
plethodontidaes
pot magnet
practical owner
pre-Fascist
pry-out
Puerto Cabello
punicine
racking course
Ranunculus cantoniensis
repeated dose
repellences
Ribes tianquanense
risk universe
RMPD
romeine
rush work
scoop shots
SDFB
shipping environment
sixx
snsisnses-s
spectromicroscopy
Spittal of Glenshee
ST_road-vehicles_cars
steady state condensate
Stelvio Pass
subdirect product
superhigh pressure
suprapermafrost layer
tanney
the capitol
thermal fusion
three throw switch
thulium iodide
tubercle of rib
warrantability
wife of the left hand
zero-sequence current protection