[医] 希克曼氏分子蒸馏法

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Just when you thought youd heard everything, scientists have found that the reason you can hear everythingincluding things that are very quietis because

发表于:2018-12-24 / 阅读(68) / 评论(0) 分类 Scientific American(四)月

Steve Jobs was racing to ensure the Macintosh 乔布斯想要先声夺人 was the first personal computer to have icons on the screen. 确保Macintosh是第一台屏幕上有图标的个人电脑 But just before it was due to be unveiled, 而就在Ma

发表于:2018-12-27 / 阅读(67) / 评论(0) 分类 名人传记

About one thousand years ago, war and famine forced the Hakka ancestors to depart from China's central plains, embarking on a collective southward migration. 上溯千年,因战乱和饥荒 客家人的祖先从中原腹地出发 开始陆续大规模

发表于:2018-12-28 / 阅读(54) / 评论(0) 分类 舌尖上的中国第一季

Exercise is good for you. Antioxidants are good for you. But put them together and its not as good as youd think. Because a recent study shows that some vitamins block the beneficial effects of exercise. A good workout not only gets your heart pumpi

发表于:2019-01-02 / 阅读(111) / 评论(0) 分类 60秒科学

Do Bats Hold the Secret to Long Life? Bats are the only mammals that can fly a great distance, but they have another ability. Many bats live a very long time for an animal their size. European researchers are studying bats to understand why they live

发表于:2019-01-03 / 阅读(37) / 评论(0) 分类 2018年VOA慢速英语(二)月

High Gas Prices Hit Rural Poor Hardest 高油价导致穷人生活更困难 Gasoline prices across the globe have dropped over the course of the last two months -- from what were record highs in the w

发表于:2019-01-03 / 阅读(139) / 评论(0) 分类 VOA2005(下)--全球经济要闻

A cellphone rests in its watery-grave,a distressing sight for cellphone users everywhere. But this one, isn't dead. Hello, this Alexan,thanks for calling ,welcome, how may I help you?Liquipel is a start-up company based in Santa Ana, California. It's

发表于:2019-01-07 / 阅读(51) / 评论(0) 分类 万花筒2012年

The 2009 Nobel Prize in Chemistry goes to Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology in England, Yale Universitys Thomas Steitz, and Ada Yonath of the Weizmann Institute of Science in Israel for their studies of the ribosome.

发表于:2019-01-08 / 阅读(92) / 评论(0) 分类 Scientific American(十)月

Cooking is one big science experiment and chefs have been gaining fame for more explicit uses of scentific techniques and tools in the kitchen. Now, according to an article in the December issue of physics world, mixologists the folks behind the bar

发表于:2019-01-08 / 阅读(72) / 评论(0) 分类 Scientific American(十二)月

Cooking is one big science experiment. And chefs have been gaining fame for more explicit use of scientific techniques and tools in the kitchen. Now, according to an article in the December issue of Physics World, mixologiststhe folks behind the bara

发表于:2019-01-08 / 阅读(81) / 评论(0) 分类 Scientific American(十二)月

化学品/农药残留物检测系统 - Chemical/pesticide residue testing; 外界污染源勘测仪器 - Detection of foreign contaminating objects; 实验室设备和传感器 - Laboratory equipment and sensors; 射线杀菌和巴氏杀菌消毒技术

发表于:2019-01-08 / 阅读(122) / 评论(0) 分类 医学英语

The drug Taxol is a powerful weapon in the fight against cancer, but it's very expensive and complicated to manufacture. Now, scientists at Tufts University and the Massachusetts Institute of Technology (MIT) say they've taken the first steps to make

发表于:2019-01-14 / 阅读(82) / 评论(0) 分类 VOA标准英语2010年(十)月

BBC Learning English A True Mancunian Callum:Hello I'm Callum Robertson and welcome to this programme which we've called 'A True Mancunian'. Now, what is a Mancunian, well a Mancunian is a word for someone who comes from the city of Manchester and i

发表于:2019-01-16 / 阅读(259) / 评论(0) 分类 Weekender

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(114) / 评论(0) 分类 2016年Scientific American(十)月

This is the VOA Special English Education Report. We have a question from China. Feng Tianqiang says I want to know something about John Dewey. John Dewey John Dewey was an influential thinker and educator. The New York Times once called him America'

发表于:2019-01-31 / 阅读(84) / 评论(0) 分类 2010年慢速英语(一)月

direct a./ad. 直接的(地)v. 指挥 direction n. 方向,方位 director n. 指导者,主任 directory n. 人名地址录,(电话)号码簿 disappoint v. 使失望 解析:disappointment n. 失望 d

发表于:2019-02-03 / 阅读(67) / 评论(0) 分类 英文语法词汇

oil field 油田 wildcat 盲目开掘的油井 percussive drilling 冲击钻探 rotary drilling 旋转钻探 offshore drilling 海底钻探 well 井,油井 derrick 井架 Christmas tree 采油树 cr

发表于:2019-02-03 / 阅读(95) / 评论(0) 分类 英文语法词汇

Something called the Danish Twin Study 一个叫丹麦双胞胎的研究表明, established that only about 10 percent 普通人在生物学允许的限度内的寿命, of how long the average person lives, 仅仅有百分之十 within certain bi

发表于:2019-02-14 / 阅读(69) / 评论(0) 分类 TED演讲科学篇

Those hours that with gentle work did frame, 时光老人曾用精雕细刻 The lovely gaze where every eye doth dwell, 刻出这众目所归的美颜, Will play the tyrants to the very same, 也会对它施暴虐于某一天, And that unfair whi

发表于:2019-02-16 / 阅读(146) / 评论(0) 分类 莎士比亚十四行诗全集

Brandy From Wine: How Alcohol Is Turned Into Brandy? 白兰地酿造工艺精湛,特别讲究陈酿时间与勾兑的技艺,其中陈酿时间的长短更是衡量白兰地酒质优劣的重要标准。干邑地区各厂家贮藏在橡木桶中的

发表于:2019-02-24 / 阅读(71) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
abpp
accumulating speed
afford facility for study
alodyne
anisotropic crystal quartz
antigoyism
appelgren
aptitade tests
arc end of electrode
arls
azimuth and speed imdicator console
blue barrier
Boswellia serrata
butterfly bush
c.e.d. (cohesion energy density)
camphononic acid
cell fifferentiation
chiefs-of-staff
chlorobenzenesulfonic acid
chronic localized emphysema
cirrocumulus undulatus
diesel oil
dimentia
disfurnitured
dovetailed way
dynamic triaxial tester
dyscophus guineti
equipment pool
ex-hippie
face centered rhombohedral lattice
fighting strength
find the right niche for oneself
flat stone chisel
frontosphenoidal
frostinglike
gauze frame
German Nazi
government-backed
grain shop
gross-root planning
gypsum base board
gyro horizon
half-terms
hatch cover travel carriage
heraclenol
hyponex
i-yeve
in the wall
interstitions
jealous-hood
Kaponga
kiddah
Laubry-Soule syndrome
light volatile fuel
line thinning
marginal schistosity
matriarchists
maximum dust content
mccleon
middle range theory
Misterbianco
news-wall
Nguia-Bouar
nicholas
nonblended
nondualistic
nonjoke
number unobtainable tone
off-road bike
overhappy
palpifers
para-chlorophenoxyacetic acid
paranitrophenylhydrazine
Phenobal
potala
prestall detector
reciprocal hybrid
reverse rig
robies
Sebastian County
shrink-fitted shell
sidereous
span(a)emia
square cutter
storage in ambient temperature
strayingest
stump up
subcarbonates
submergeable
Sydama
symminct
ten o'clock
thermopolyspora vulgaris
unordered partition
variable swept back wing
Vogt syndrome
wardress
white dogtooth violets
wintershall
year-to-year variation
yosses
zacharie