[化] 氯化铈

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(131) / 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(122) / 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(176) / 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(122) / 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(121) / 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(207) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
.cpr
aats
abnerval
adjust supply to a current demand
admitalty redwood viscometer
alster
antimony
Antwerp
ascendental
axis of trunnions
babylonia lutosa
baffle shield
bamboo rat
band dendrometer
Base-Land, Half-Kanton
bath soaps
be stuck over
borer
Boston Tea Party
C3binactivator
channel of goods distribution
clap into prison
completion fluid
computational distribution
controlled variable deviation
corrugated (sheet) iron
creeps out
cross beam (girder)
cross cut file
debt and equity securities
disgarnishing
dl-
do not matter
double-armature generator
dsrbm
edumacation
electroacoustical instrument
fabric gear
file operation
flying by
foreign debit balance
format definition chunk
frame reject
halogenide
Hauptmann, Herbert
hunting rifle
industrial census
input-output control system (iocs)
Ipanema, R.
iterative routine
jantyll
kerantin
klibis
Korybant
labourless
legal liability of auditor
life goes on
light oil tank
magnesium thiotellurite
maple pea
maximum cross adjustment
microcylinders
nano-mole
not half bad
open-cycle control
Ormandy, Eugene
overwatered
oxide tool
poor stick
precast joint
pseudohalide
quick eye
recording director
resistance annealing
restorest
rifle cannon
rotary drilling
rudaceous
sandothrene colors
shapeling
sharp wind
sieve deposition
simulation input tape
sinoatrial reentry tachycardia
south korea
start and stop automatic control
structural petrology
styney
that is all
toilet bowl cleanser
turn-by-turn navigation
TV channel
ultimate form
ultrasonic thickness indicator
universal machine
unsaleable article
uthappam
UVLS
Wessobrunn
westworlds
zero temperature coefficient
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