氯化钽(V) {五氯化钽}

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(123) / 评论(0) 分类 VOA标准英语2014年(六月)

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(111) / 评论(0) 分类 2018年NPR美国国家公共电台11月

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(164) / 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(116) / 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(112) / 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(193) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
acyl anhydride
adjacent picture carrier
aggregation method
along of
anti-ferroelectricity
atyopsis spinipes
Augusty
built in homojunction
button-flies
callistocythere japonica
catharises
checklists
cockerpoos
coffin lock
coracias garruluss
coseismic
criminal possessions
cut sevtion
depressor muscles
deterrent options
diagnostic pneumoperitoneum
diospyros sylvatica willd.
disyntheme
draffish
electric wool shear
enamorment
equivalent circuit model
Espinillo, Cerro
ex post facto
fall into a doze
family Zapodidae
felinoids
flaky pastry
Gorno Nerezi
greenhouse-geisser
gruellingly
houseshoe
imidine
in possession
innie
intellectual culture
inverted repeats
Isobryales
Laceyville
landworkers
laser target designator
long-chain copolymer
loose diamond
Macaranga pustulata
microprogram control function
mineralisation
mining method for dipping medium thick orebody
Mitwaba
mouns
musculus rectus capitis anterior minor
non-senile
nonce words
nonviruses
oils and fat(s)
oro-pharyngeal
outrun
palus
partition of a positive integer
patent agreement
photochromatic camouflage material
piston ellipsoid grinding machine
recombs
restaple
Reticulitermes
rhodamins
ripe
run berserk
sand-basin
sarcenet
sealed road
seneour
shaft bse system
shatter breccia
silver bass
Smith, Act.
Spasfon
spin extractor
strictly triangular matrix
subaeration
supertonic seventh chord
the turn of the tide
thermal maximum
Two Oceans
ultra-soft
venous lake
Vinzelberg
walkman
water pump spindle distance piece
waterpress
wave producer
Weri
western dewberry
weymouth pines
will-jill
worldwise
xenochthonous
Yauca