[核] 水溶液辐射化学

1、从某些特殊情况外,专有名词 、抽象名词和物质名词前不加冠词。例如: Wisdom is better than strength. 智慧胜于力量 Blood is thicker than water. 血浓郁水 2、在表示交通工具和科学名称的名词前不加

发表于:2018-12-01 / 阅读(152) / 评论(0) 分类 薄冰实用英语语法详解

In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du

发表于:2018-12-02 / 阅读(202) / 评论(0) 分类 Scientific American(十二)月

诸多线索综合起来为我们描绘出一幅画面:那是火星遥远的过去,那时的火星还有着一层厚厚的大气层,令这颗星球温热暖和,从而使水能够在火星表面流淌。但如今,地表的水消失不见,而

发表于:2018-12-07 / 阅读(168) / 评论(0) 分类 60秒科学

21 俄勒冈青蛙数量急剧减少的调查分析 DATE=5-11-01 TITLE=ENVIRONMENT REPORT - Oregon Frog Study BYLINE=Cynthia Kirk (Start at 59

发表于:2018-12-07 / 阅读(136) / 评论(0) 分类 自然探索

EXPLORATIONS - Ancient Martian Conditions Could Have Supported Life From VOA Learning English, this is EXPLORATIONS, in Special English. Im Kelly Jean Kelly. And Im Christopher Cruise. Today we report on recent scientific findings about the planet Ma

发表于:2018-12-07 / 阅读(135) / 评论(0) 分类 2013年VOA慢速英语(三)月

AS IT IS 2014-08-02 Americans Test Seawater for Fukushima Radiation 美国欲测试福岛辐射值 It has been more than three years since the nuclear accident at the Fukushima power station in Japan. Millions of liters of radioactive cooling water f

发表于:2018-12-16 / 阅读(132) / 评论(0) 分类 2014年VOA慢速英语(八)月

The operator of Japan's crippled Fukushima nuclear plant is reporting around 300 tonnes of highly contaminated water has leaked from a storage tank. Masayuki Ono is the general manager of the Tokyo Electric Power Company. He says the puddle that has

发表于:2018-12-19 / 阅读(133) / 评论(0) 分类 世界各地新闻集锦

Water Blankets Forming Planets A study in the journal Science finds much more molecular water in regions where planets are forming around young stars. The mechanism to keep the water from being destroyed by UV radiation appears to involve some of the

发表于:2019-01-02 / 阅读(240) / 评论(0) 分类 60秒科学

But they never got there. The first disappeared into deep space. Another missed its target when its coordinates were confused. One NASA control center was working in metric, the other in feet and inch

发表于:2019-01-02 / 阅读(217) / 评论(0) 分类 火星生命

pH - a measure of how acid or alkali a solution is. As the pH gets lower, the solution is more acid. At a pH of 7 the solution is neither acid nor alkali. pH is the inverse of the logarithm of the con

发表于:2019-01-03 / 阅读(181) / 评论(0) 分类 医务英语

The clues are adding up to give a picture of a distant Martian past, when the planet had a thick atmosphere that was warm enough for water to stream on the surface. But now the waters gone, and the atmosphere is so thin that any water would boil away

发表于:2019-01-08 / 阅读(170) / 评论(0) 分类 Scientific American(十)月

本期真题 1.If tap water were as dangerous as some people think, ________ would be getting sick. A) a lot of more us B) more a lot of us C) a lot of us more D) a lot more of us 2.Living in the cent

发表于:2019-01-08 / 阅读(159) / 评论(0) 分类 英文语法词汇

Forget cockroaches. Forget Superman. Forget any other tough-as-nails creatures youve ever heard of. The most indestructible multicellular organisms on Earth are undoubtedly tardigradesmicroscopic eight-legged aquatic invertebrates also known as water

发表于:2019-01-17 / 阅读(229) / 评论(0) 分类 2016年Scientific American(十)月

You've probably seen pictures of Greek villages, where every house is painted bright white. The paint reflects the intense sunlight of the Mediterranean. And it works pretty well to keep the houses from heating up in the sun. But it doesn't actively

发表于:2019-01-20 / 阅读(808) / 评论(0) 分类 2017年Scientific American(二)月

You've probably seen pictures of Greek villages, where every house is painted bright white. The paint reflects the intense sunlight of the Mediterranean. And it works pretty well to keep the houses from heating up in the sun. But it doesn't actively

发表于:2019-01-20 / 阅读(161) / 评论(0) 分类 2017年Scientific American(二)月

Those planets are all going to be so hot, and you cant develop something as complex as life. Scientists have gone back to the drawing board, looking to find worlds capable of supporting life, small rocky planets like earth. We dont know that life has

发表于:2019-01-22 / 阅读(149) / 评论(0) 分类 自然百科2010年

Your last colonoscopy was 10 years ago, Dr. Carter said. It's time for another one. Bruce made an appointment for another one. He received prescriptions for a laxative and a plastic gallon jug. The jug contained electrolytes. The day before the colon

发表于:2019-01-22 / 阅读(167) / 评论(0) 分类 英文短篇故事(纽约)

JEFFREY BROWN:And now to part two of our investigative look at the safety of America's drinking water. Science correspondent Miles O'Brien reports on the toxic chemical made famous in the movie Erin Brockovich, its potentially harmful effect on human

发表于:2019-01-27 / 阅读(224) / 评论(0) 分类 PBS访谈环境系列

Now, the going gets tougher. The next stage introduces entities that are significantly more fragile, significantly more vulnerable, 现在,(变化的条件)就更加苛刻了。下一个阶段是初次形成的个体,个体是明显更加弱小

发表于:2019-02-14 / 阅读(148) / 评论(0) 分类 TED演讲教育篇

台湾籍旅美老师今天交给我们的句子是: Well the water itself doesn't have any sugars or proteins like food so microbes aren't consuming it and rotting it. However, that's not to say the chemistry of the water hasn't changed. 水并不像

发表于:2019-03-05 / 阅读(251) / 评论(0) 分类 留美老师带你每日说英文
学英语单词
adoptive parents
Amandava
anon
anthericum liliagoes
basils
behavior of the economy
black-bag job
bluid
bomber seat
Bouchard's nodes
bush fires
champlever
commiserate with sb
conductor head assembly
deepmost
dimethylsulphone
diplomatized
do not stack on top
eastend
ellitoral
ESD bag
established reliability
ethyltriphenylsilane
external-gear
family names
ferro-albumino-tartrate
filicaless
first line finder
first-pole-of-clear factor
fixed vessel head insulation canning
foresightless
frequency chart
general telecommunication information service
good intention
gyroid
H. V.
head and slippage cross
helix lead
holding-up tool
holonomy
hydrogen chloride column
installation dependent
iridocorneal
kelde
leukopoeitic
main control drum
malentendu
measure noses
mesonorm
Microtropis tetragona
miscensures
Miss Brown
montier
Nashville Dome
natrofairchildite (nyerereite)
natural-disaster
neavitt
NMOS (n-channel mental-oxide-semiconductor)
nourishing the fetus
old wives
oxacyclopropene
oxygen gasification
pachyrhizus
pangeosyncline hypothesis
plot summary
plutocracies
proof of age
protibial
protonephron
punitism
purchase blanket release detail
purpurein
resuming execution of coroutine
rhinoplasty
scraping ring
seasonal model
second purser
seismic stress drop
sell in May and go away
semichaotic
simplex system
skip-stop
sky-rockets
spiral scroll
staphylococcus bacteriophage
starve
stretching hammer
synecdochises
take
the power behind the throne
Therapeut
thickness deviation
toppling
transferrable
triangular section bar
Unalaska Bay
unbiased
vane-wheel water meter
volumetric strain energy
warm-front thunderstorm
wesar
Wickham, C.