[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
aardsma
Allen's loop test
amboceptoid
anticorrosin
appointable
Are you there?
Asian corn borer
assault weapons
atrioseptopexy
bang ed to rights
biological embryology
bulkhead luminaire
calciturbiditic
chrominance signal correction
clammed
collarbutton
color comparision
compulsory stop
condition-incident log
coordinate plotter
deformational trap
diphycercal
dysbasia lordotica progressiva
economic legislation
enrolees
explosion pipette
fahlite (tetrahedrite)
feed pitch
feeding and distributing devices
filing of suit
flange less
forging heat-treatment
Futa Jallon
geodesic correspondence
grants to students
hardcore
hiccup nut
high speed aerofoil
high-tensile
holistic thinking
hyperrecombination
in his right mind
insurance premium of commercial enterprises
Keenania tonkinensis
let ... drop
make an issue
maxillary archwire
meltem
midbay
mitral commissurotome
Nephrolepis hirsutula
nerve nets
newtone
nonincreasing series
not to set sth. at a pin's fee
once you go black, you never go back
orbital transfer
out-of-sight
Paphiopedilum barbigerum
passing lanes
pectinato-fimbriate
pencil-like
phare
photo opportunity
pinkish cream
populous nation
power overlap
precepts
predetermine
proctocolectomies
prynne
railway crossing
rape-cake
retained tag
scanning radiation thermometer
Sea Law Convention
selling and distributing
ship latest position
slender centauries
solar array-battery system
source of power
Sphenolepidium
split-die
spoonleaf yucca
stichtite
strepto-
Subsequent Offering
susurluk
table of cases
TH3624
theocratizes
threshel
titanosaurian
Tlalpujahua
trans-cinnamaldehyde
treaty contracts
unilateral component
unrebellious
upright slash
variable test
vector aircraft
vessells