[化] 亚硝酰氯; 氯化亚硝酰

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
5-Hydroxygriseofulvin
a tower of strength
afiliated circuit
auxiliary worker
axiomatising
axocoel
be on about
biochrons
blade station
boat-tailed
bring ... back to earth
buckle making machine
caber
camber sand
Central Java
centre joint
channel-section spar
chemical hysterectomy
chloral
chronoscopic
cleavage loading
computer-aided grammatical tagging
cost-comparison
costeley
Couphochlorite
Daphniphyllum himalense
direct current selection
dovelet
driving stage
elastic quadrant
embottles
equal vector
flashes on
flighty
fundamentalmente
goldsinny
handbook speed
harpsicord
Hermetic writings
Hittorf
hymnwriting
hyperinflationary
latex froth building machine
left hand plough
lentile
long term effect
makatite
marking nut oil
milius
Ministry of Transport
mobile ion
moscow' pensacola
Nagano-ken
netware bridge
no-fuse breaker
nonlinear moment characteristic
nontied rate
Ochsner's ring
ostodes paniculata bl.
out-of-the-money option
outer arbor support
oxyhydrogen torch
passive negativism
picase
Prey Lovea
quadrantanopsias
remote-position control
reptatory
ringing off
ripe for something
rocker arm ways
roof-beam
rpf (radial peaking factor)
rubrie
rules of zoological nomenclature
scleral shortening
score a run
secondary sodium loop
single-line
solanum crispums
spiperone
splinterproof
standard contract provision
statistic bulletin
strend
suffisantly
tabular root
tacoma narrows bridges
taolmethylose
thermal chemical reaction
transmittance of lens
turned-wood
turnkeying
two-sample method
unghosted
unstay
user defined function
vibrating reeds
Vista Home Basic
vitami
wire long splice
xanthorism