二磺酰氯

Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(147) / 评论(0) 分类 (科普英语)Earth and Sky

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(182) / 评论(0) 分类 知性英语

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(108) / 评论(0) 分类 2016年Scientific American(一)月

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(64) / 评论(0) 分类 自然百科2009年

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(55) / 评论(0) 分类 地道美语播客

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(120) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
0371
agc unit generation summary
alimentation region
alpha flux
alternate depositors
analytic hierarchy process
aromatic copolyamide fiber
Barbadoes
beacon pile
beat around
blastospora itoana
blue thermal
bluesky
borough englishes
chain-restaurant
chargeable time
chorda sheath
co-designer
collective singlepart drawing
compactopen topology
complex atomic spectrum
cordata
counter adaptation
covenance
crabspider
declination (dec.)
decumulating
digital Kalman filter
direct marketing by mail
distribution database
doiras
empholite
employee training expense
essay test
esthesiology
ETB (end of transmission block)
false pimpernels
Farm Credit Act
feldspar porcelain
first-piece time
fundraiser
fus coccus
gardenin'
genus Tropidoclonion
gisha
going out of business
hand-habend
hethels
heuristic value
I-1
in holding
inflammatory polyp
jet hardening
keleps
magnesite refractories
misumenoides formosipes
Motherwell and Wishaw
nanolevel
Nawaz
non-thermal neutron
nonspatialized
nonwoman
optical character reader
optical distance
osmotic concentration
Pediculus capitis
perez de cuellar
pitch-class
pollotarian
pre-order matching period
pressure rake
probability limit
reentrusts
relevancy tag
return due date
Sambanghyǒp
Sciaphila ramosa
Sgr
skene arch
solenaster
somniosus pacificus
spritzer
stator coil inserting machine
stock-trade
suspended sixth
suturae frontomaxillaris
tape distortion
trawl lines
truth-value gap
TSgirl
turquoise green
twin surface grinder
uncolloquial
undermeanings
unfarced
valises
valve stem stickking
vanable
Varuna, Piz di
virtue is its own reward
W-index
Web index