对氯苯磺酰氯

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(58) / 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(105) / 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(60) / 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(54) / 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(117) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
abrasive disc
absolute addresses
acantholide
Achillurabainia
active file table
airplane flutter
allomerize
amyl butyric ester
ancas
aphroaisiac
ashes
astro fix
attended
attractee
auxiliary processor
Babushara
barysilite
be hard on somebody
be like
berkeleys
Carpetnetter
chance one's luck
chemically clean surface
Chichibu
Clematis potaninii
cold polymerization
complex Lie group
computational logic
deltoidal
Demen
diagenetic
dickholes
digestion trial
discursion
displacencies
double-margined door
doubtsome
drafting-machine
drinking vessel
drop-down menu
duus
elenolate
ethical entrepreneurship
exchange absorption
fine probe
gastricsin
give ... a hand
give something a whirl
GJP
gray langur
harmonious socialist society
hi-rise
high anticyclone
highest-priority
HIMANTOLOPHIDAE
hot-air ballooning
irreligiosities
large scale electrolytic cell
licls
light ends from crude distillation
lose a battle
Maguindanao, Prov.of
manifold valves
Mauvezin
mechanical shake cleaning
melissin
midget-porn
moyne
new building completed
no end of a spread
non-existence
ornithine
orthic acrisols
Ozerishche
pectorimyon
pendulum jigger
Pio R.
plough-type machines
pnom penhs
pumpability
raise a loan
reciprocal variational problems
shale oils
shear relaxation
simple check
single-buyer
six-county
specific reagent
SPRC
stenoloma chusanum (l.)ching
suillus luteus
Sunday virus
survey of resources
syndrome of stomach fire flaring gum
ternately trifoliolate
testing company
titkins
train
unstabilizing
valenii de munte
ventrucle
wireless application environment