铂同位素

I'm sure that, throughout the hundred-thousand-odd years of our species' existence, and even before, 我十分确信在人类诞生以来的大概10万多年,甚至比这更长的时间里 our ancestors looked up at the night sky, and wondered what

发表于:2018-12-05 / 阅读(75) / 评论(0) 分类 TED演讲国际问题篇

My disposition permeates The room when I walk in a place I'm sorry! By calculation I'm way too much Pretentiously I bitch a bunch But you bought it! I can't exceed my reputation A small town girl with compensation Explorin' all my possibilities Well

发表于:2018-12-08 / 阅读(89) / 评论(0) 分类 格莱美获奖歌曲

Ever wonder what your French fries were fried in? Like bumbling burglars who leave fingerprints at a crime scene, cooking oils leave their own clues. And by measuring the carbon isotopes in French fries, University of Hawaii researchers found that on

发表于:2018-12-24 / 阅读(66) / 评论(0) 分类 Scientific American(一)月

Ancient Bones Reveal Ancient Diet, Lifestyle Scientists learned recently that fish was the main source of protein for people in southern Scandinavia many thousands of years ago. They also ate other animals that live in the water. The findings come fr

发表于:2019-01-03 / 阅读(58) / 评论(0) 分类 2018年VOA慢速英语(十)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Climate change is the great environmental challenge facing the world today, but maybe we should start calling it Climates Change. Because scientists who've

发表于:2019-01-08 / 阅读(98) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-second Science, I'm Steve Mirsky. Got a minute? Back on January 15th, US Airways Flight 1549 made that amazing water landing in the Hudson after both engines were taken out by Canada geese, which can weigh eight pound

发表于:2019-01-08 / 阅读(94) / 评论(0) 分类 Scientific American(六)月

Some people of Italian ancestry, like me, might have a surprise in the family treea man of east Asian descent, who was living and working 2,000 years ago in the boondocks near the heel of the Italian boot. The discovery is the first good evidence of

发表于:2019-01-08 / 阅读(90) / 评论(0) 分类 Scientific American(二)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. If youve ever wondered where the Earth came from, the answer, it seems, is blowin in the windthe solar wind. Or so say scientists who, after examining sola

发表于:2019-01-08 / 阅读(98) / 评论(0) 分类 Scientific American(七)月

AS IT IS 2016-04-26 Chernobyl, Risky Still, Thirty Years Later 切尔诺贝利三十年后风险仍在 Tuesday marks the 30th anniversary of the Chernobyl disaster, the worlds worst nuclear accident. The effects of the disaster are still felt today.

发表于:2019-01-12 / 阅读(92) / 评论(0) 分类 2016年VOA慢速英语(四)月

The first day of the experiment, we got out to our plot 实验的第一天,我们来到了实验地点, and a grizzly bear and her cub chased us off. 突然一头灰熊和她的熊宝宝出现,把我们赶跑了。 And I had no bear spray. But

发表于:2019-01-18 / 阅读(73) / 评论(0) 分类 TED演讲科学篇

Science and technology 科学技术 Going underground 向地底进军 A project to reveal more about all the carbon on Earth 旨在向人们揭示更多地球碳信息的项目 The Deep Carbon Observatory 深碳观测站 A world still full of secrets

发表于:2019-01-26 / 阅读(61) / 评论(0) 分类 经济学人科技系列

Technology Going underground 科技 去地球深处 A project to reveal more about all the carbon on Earth 一个将会揭示更多关于地球上所有碳的秘密的项目 THE carbon cycle is the stuff of school books. 碳的循环在学校教科书中

发表于:2019-01-26 / 阅读(67) / 评论(0) 分类 经济学人科技系列

WASHINGTON, Jan. 12 (Xinhua) -- The Obama administration on Saturday killed the idea of minting platinum coins in the denomination of 1 trillion U.S. dollars to generate revenue and avoid the looming battle with Republicans on raising the federal gov

发表于:2019-02-07 / 阅读(81) / 评论(0) 分类 英语新闻

How old is the Earth? 地球的年龄有多大? Well, by counting the number of isotopes in a sample of rock that's undergone radioactive decay, 通过对岩石样品中正经历着放射衰变的同位素计数, geologists have estimated the Ear

发表于:2019-02-13 / 阅读(80) / 评论(0) 分类 TED演讲教育篇

South African Platinum Producer Fires 12,000 Workers JOHANNESBURG The worlds biggest platinum producer has fired 12,000 workers in South Africa after they engaged in an illegal strike, company officials said Friday. The nations main mineworkers' unio

发表于:2019-02-13 / 阅读(121) / 评论(0) 分类 英语新闻

But there were many technical difficulties to overcome. Holmes also neededor at least would very much have appreciatedsophisticated gadgetry of a sort that could make very fine measurements from tiny samples, and as we have seen it was all he could d

发表于:2019-02-17 / 阅读(60) / 评论(0) 分类 万物简史

A group of scientists from the Ohio State University are trekking to the top of the Quelccaya Ice in the Peruvian Andes to try to measure the effects of climate change on the world's glaciers. The average distance above sea level on the glacier is ar

发表于:2019-02-18 / 阅读(48) / 评论(0) 分类 英语新闻

WASHINGTON, Aug. 17 (Xinhua) -- Latest research shows that the Moon could be younger than previous estimates. The findings were published online Wednesday in the Nature journal. The prevailing theory of the Moon's origin is that it was created by a g

发表于:2019-02-19 / 阅读(70) / 评论(0) 分类 英语新闻

下面跟大家列出几种简单句和并列句 1. 简单句的五种形式: (1)主语+谓语(不及物动词); (2)主语+谓语(及物动词)+宾语; (3)主语+谓语+宾语+补语; (4)主语+谓语+间接宾语+直接宾语; (5)主语+系动

发表于:2019-02-19 / 阅读(51) / 评论(0) 分类 大学四六级阅读

As one commentator has put it, fleeing would mean selecting a slow death over a quick one. 有一位评论家说,逃跑意味着在慢死和快死之中选择慢死。 The death toll would be very little affected by any plausible relocation effort,

发表于:2019-02-25 / 阅读(63) / 评论(0) 分类 万物简史
学英语单词
acetylomes
acylphenolphthalein
adsorption hysteresis
advection radiation fog
AFE analog front end
agathodemania
airdashed
balkh r.
barricuda
belt of weathering
Bereitschaftspotential
brake check
captive trajectory system
cash on receipt of merchandise
challot
cherry red heat
cracking distillation
Cross rates
cumulogranite
D.C. noise of tape
deprotestantize
descriptive economics
descriptive folder
Dietersweiler
dispermous
double angle shear
EPTHIANURDAE
focusing internal
forced landings
fried sliced squid
generalized principle of superposition
genus Harpullia
Gerroidea
gravitt
hewat
intercharacter spacing
isocaproaldehyde
J'ouvert
karakul
Kisbey
laminated veneer
Limboto, Danau
Loup River
Lubok Antu
Macromedia flash
management of commodity package
mill house
monomaniacally
multi-objective interactive programming method
multiprogrammed load controller
nail holes
needle selection
non-uniformed
Noveme
ocean energy power generation industry
one's ears perk up
operation area
opercula
opinionately
outside-inside
Panalgin
paribus
pentiti
percent days in milk
petajoule
piezoelectric element
pixes
planing work
Poa acroleuca
prankees
precipitation cone
primitive scheduling
productivity
pulsation damping dashpot
pushing tractor
quadruplex telegraph
registration authority
revenue recognition principle
running-on
seicentist
shale reservoir
sign posting
slabbering
socializations
softening cyst
spinsterlike
statically balanced
stepped surface
sugar-beet lifter
surface interpolation
temporal-spatial
TGAR
to begin with
top ca
track sheet
transportation depot
trap queens
ultor
undur
Uripa
vibrion septique
vinegar spinel (rubicelle)