[化] 放大程序; 放大步骤

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(146) / 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(157) / 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(173) / 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(228) / 评论(0) 分类 2015年Scientific American(一)月

26 Renting an Apartment GLOSSARY apartment manager a person whose job is to take care of problems in an apartment building, collect the rent, and find peopleto live in the building * When our toilet stopped working, we called the apartment manager. v

发表于:2018-12-26 / 阅读(203) / 评论(0) 分类 2008年ESL之就医和人际交往

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(179) / 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(175) / 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(170) / 评论(0) 分类 Scientific American(三)月

By Robert Raffaele Washington 27 March 2008 A new type of surgery may make it easier for patients who would otherwise require a more invasive procedure. The new type of operation makes it possible for doctors to remove unwanted tissue through a patie

发表于:2019-01-09 / 阅读(198) / 评论(0) 分类 VOA标准英语2008年(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(226) / 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(191) / 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(135) / 评论(0) 分类 VOA标准英语2012年(一月)

RACHEL MARTIN, HOST: About 800,000 people have strokes every year in the U.S. Most are caused when a clot blocks a blood vessel to the brain. We've known about strokes for a long time. But it wasn't until recently that doctors could do anything about

发表于:2019-01-17 / 阅读(178) / 评论(0) 分类 2017年NPR美国国家公共电台5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(148) / 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(239) / 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(203) / 评论(0) 分类 VOA常速英语2007年(十一月)

Julia: Arent you nervous about your surgery next week? Hugh: No, its a routine procedure. I dont even need to be admitted overnight. Julia: But arent you going under general anesthesia? Its not the same as local anesthesia, you know. Hugh: Yes, I kno

发表于:2019-02-06 / 阅读(154) / 评论(0) 分类 地道美语播客

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(226) / 评论(0) 分类 2018年科学美国人10月

By CCTV reporter Liu Yang The Administrative Procedure Law is often used in cases involving the improper handling of land of local governments. Our reporter Liu Yang explains the loopholes in the current law and what the changes to the law would mean

发表于:2019-02-18 / 阅读(218) / 评论(0) 分类 CCTV9英语新闻2013年12月

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(193) / 评论(0) 分类 双语有声阅读
学英语单词
above market
abstinyl
accumulative process
altamira
attendant phenomenon
bactericidal coefficent
bicolourous
biggest advance
billiard ball
bomb-release
braking chatter
brandiss
Brugnera
buzzy
centerline shrinkage cavity
Chorna
clotting times
colloidal phosphate
ctenidium serratifolium
culrach
determinant tensor
dijmarescus
draft gear
draw stick
dry-docked
duplicate
eterusia aedea formosana
flow-controlling gate
fluid drachms
fore-pleasure
gangliosidosis-GM2
gley horizon
Gorodetskoye
grommit
heavy-duty spring
high velocity air hood
horizontal wood milling machine
Hughes, Charles Evans
immediate settlement
impinging particle
in-home shopping
induced electrooptic axis
K-factors
kenans
latent group
logroll
lugubrous
lupulite
manasseite
marine reclamation land
maritime reconnaissance aircraft
Mecca(Makkah)
mirow
MSRFT
multiline calibration
musaks
Mut'ē
nematode population
nursery education
octarchic
odonto-pulpal prosthesis
oenogarum
optical fiber receivers
orthorhombic structure
Ovis vignei
pipe size
piston packing
planococcus citris
plexus venosus pharyngealis
Polygala glomerata
post-Three Mile Island
pouched moles
prejudicall
quartic polynomials
reform and opening - up
repark
reskinnable
revenue elasticity
round dozen
schedule weight
shielding of nuclear charge
significance of selling activities for consumer preference
sinapoline
skittle ball
tajuria illurgis tattaka
the least bit
theory lower bound
theory of capital formation
took the bait
torel
tortoiseshells
toxic multinodular goiter
transthoracic
urairats
uroporphyrin(UP)
vagabond
verification of risk aversion assumption
voice-response prompt
Wanneroo
web portal manager
Wendel Sea