【遗传学】强制放大

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(81) / 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(76) / 评论(0) 分类 2013年VOA慢速英语(二)月

Being Forced Out of a Position Julianna: Ha ha! The wicked witch is dead! Hugo: What are you talking about? Julianna: Bettina is stepping down as chairperson of the committee. I thought this day would never come. Hugo: Thats a big surprise. I never t

发表于:2018-12-18 / 阅读(103) / 评论(0) 分类 2013年ESL之商务英语

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(75) / 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(71) / 评论(0) 分类 2015年Scientific American(一)月

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(89) / 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(77) / 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(94) / 评论(0) 分类 Scientific American(三)月

人力资源专家说,名企为面试设计那些难以应付的英文考试题目,就是为了在泥沙中淘出真金。因为,这些题目既能检验求职者的语言能力,也能考验他们的逻辑思维能力、抗压能力、应变能

发表于:2019-01-08 / 阅读(85) / 评论(0) 分类 英语新闻

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(124) / 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(90) / 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(66) / 评论(0) 分类 VOA标准英语2012年(一月)

Malta Forced to Cancel Repatriation of African Refugees Tired, hungry and dehydrated, 68 migrants who'd set sail from Libya were rescued by Maltese patrol boats Wednesday 50 kilometers off the coastline, after their vessel lost power. It's the second

发表于:2019-01-14 / 阅读(75) / 评论(0) 分类 VOA标准英语2013年(七月)

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(71) / 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(116) / 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(107) / 评论(0) 分类 VOA常速英语2007年(十一月)

The United Nations Children's Fund is calling for a halt to the forced recruitment of child soldiers in the Democratic Republic of Congo. It says all warring parties in North Kivu Province forcibly recruit children into their armies. Lisa Schlein re

发表于:2019-02-06 / 阅读(82) / 评论(0) 分类 VOA标准英语2008年(十二月)

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(77) / 评论(0) 分类 2018年科学美国人10月

At the just concluded 2018 Yale US-China Forum held in New Haven, Connecticut, cooperation between Chinese and American companies was a topic that drew heated discussions among guest speakers. A number of US companies and scholars have refuted the US

发表于:2019-02-22 / 阅读(86) / 评论(0) 分类 2018CRI中国国际广播电台

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(102) / 评论(0) 分类 双语有声阅读
学英语单词
2'-Hydroxychalcone
a hatchet man
abaxial side
adjustable frequency
allegorically
aplune
Asperger syndrome
b relay
baculate
bajada breccia
barrow mounted sprayer with engine drive
bat angle adjuster
Beckham, Victoria
buckle-back Windsor chair
caller's access right
certe
charnockites
children with special needs
column headers
confidentiality clause
contracted kidney
cothouses
cyclic strain-hardening exponent
cynurine
dinkiest
direct mailer
discocephali
doaty
dorsal blood vessel
dxb
electro-acoustic transformer
exterior wall facing
Feldtman
ferro-cement sluice
fujiura
get what is coming to one
glen canyon dams
granular-fertilizer distributor
Hebraic
hemorrhagic conjunctivitis
hollowest
hot coke
jam-packing
Karamti
Khatib, Ras
Kyuyel'lyakhskiy Khrebet
L'vivs'ka Oblast'
lauren
leets
Letter of Affirmation of Ship Auction
maid (of honor)
Maraňón, R.
Medicago sativa
MEDPRO
meet someone's eye
misuse of authority
mity
morphinane alkaloid
Nicholas Hawksmoor
nodular concretion
non-overlapping code
Normanization
nudzhes
nupas
pailing
pandanus languages
parakeratoses
piece wise linear region
politizes
prenoxdiazine hydrochloride
private ownership economy
proceed in case
protective leaf
proton synchrotron accelerator
punch above one's weight
purchase order copy
quercimeric
quickerer
rasped potato
recraiand
remote management
rutted
sand spurry
setbolts
shorter-lived
symbolic operating system
T-slot cutters
target tape
tavon
tcheky
thick beam
tight junctions
TKIP
UHF tuner
underreporting
uranias
vaa
West Middlesex
Yeongheungdo
zaphod
Zid'ky