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(146) / 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(140) / 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(197) / 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(140) / 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(135) / 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(230) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
act of depredation
after-piece
after-sales service
Algerines
alkanin paper
anti-seismic design of main power building
apogon truncatus
author's alterations
awedness
banar
battery-powered
behenyl alcohol
Bridgeboro
bull bay
cabbaging press
cash assets
cellulitis of submaxillary space
channels distribution
chlorine alkali industry
clean bond
clean start
closing membrane
cold episode
colpoparovariocystectomy
compositional maturity
conidioid
contestant
curarising
cybersexuality
cyclone capacity
Cynoglossus
decartel(l)ized
devils r.
dicycol
digital angle measuring system
doubling preventer clamp
electronic brain driven centrifuge
elmer-dewitt
emergency ventilation system
familiarizations
figure-of-eight reception
filament waste
friction board
fudder
fullfreme
fundamental harmony
genus Populus
glutamyl cycle
granophyres
grid, square
heat treating transportation
hepatozoonosis
high tension magneto
hogcotes
holtorf
irretiate
Jamari
Joranger
lamimation
leisure centre
maximum retention time
moderate consumption
noise-air-pollution
obelised
oculomotor root
Otshandi
placental septum
porcelain combustion boat
precarburization
Procris wightiana
protoquamquam
pseudo-code notation
pseudoproper
pure argon
pwh
reverse-mortgage
Saint Vitus dance
skeletal vibration
slide cleaner
slow neutron resonance absorption
square wave back edge
stall peddler
steeled
structure integrity
succedaneously
supralaryngeal
systematic propeller sequential
T tube
terminal area forecast
time division multiplex telegraph system
titmouse
to bake
triced
ultegra
ultimate demand
underground power supply system
unfavorable answer
uricolytic indices
vapo(u)r phase deposition technique
warrant for payment
work envelope
zone of co-destruction