氯化铼(IV) {四氯化铼}

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(60) / 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(59) / 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(107) / 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(119) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
advances from consignees
Aguinaldo, Emilio
air-washeds
art-critics
ash shallufah
aspden
attenuative power
auxiliary counter
balcony partition
bifurcated process
black swallower
blauboks
british-controlleds
brucellergen test
Bulbophyllum haniffii
bulk coining
bushed die
cage rotor
candidaemia
ceramic metal
chime hoop
coelomate
control dependence
creep-resistant steel
crisis counseling
Daeheuksando
decimal literal
dementi
downcoding
draggerman
Drepanostachyum luodianense
dust load
energy-rich thioester bond
family gonorhynchidaes
fir-needle
flying boat hull
frangible coupling
gimbal mount assembly
gloria swansons
gross horse power
grubstruck
haemulon malanurums
heats of vaporization
herbert a. simons
heribert
horse-trade
implied covenant
iodophiles
labour hero
lachs
laminae of vertebral arches
lamproites
Langkon
lateral stress
line out
locally arcwise connected
low fat diet
luculluss
median apophysis
menticirrhuss
mesometric
misfeaturing
mountain village
multi-vibrator
multicurrency intervention
nose-thumbing
opercular fold
ornithine transcarbamylase
orvietoes
patent cooperation treaty
pausanias
pemboes
phase boundray potential
pileous
plankings
polyplasmia
pre-run
privatisms
protocoled
pumped well
sales basis (of revenue realization)
scatter effect
scratched-out
secondary cash reservers
segholate
self-labeling
shore region
six-a-sides
small indefinite quantities
sphenobasilar cartilages
taper sleeve of ball bearing
teacher tenure law
tide ga(u)ge
toggle joint lever
total progam package
Trifolium medium
trychor
turret deck vessel
vibration dampening characteristic
water injection augmentation
water softened and purified
weather loach