[化] 四氯化二铊

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
adrspaches
afreet
air-floated head
all to a man
Allen key
amicinafide
analog processors
Antispas
AWG, American Wire Gage
beany flavo(u)r
beeswax candle
below the salt
bitulithic
bugaboos
camouflage coating
caracals
Caribbean Current
chafed yarn
circularly polarized radiofrequency field
clay deposit
coal body
computation rule
contributory negligence
counter-influence
cyclic diagnosis algorithm
desiccation crack
developmental design
dichondras
digastric groove
dissociatingpower
double star equal altitude method
Dunnia sinensis
elfdom
equivalent weights
Fahrenheit scale
filliculi lymphatici aggregati
forktailed
frustum of wedge
gastric benign ulcer
gentiana proceras
Gibraltar for Orders
greenstick fractures
height of free fall
impulse relay
input/output efficiency
ioxitalamic acid
Katib, Ras
lenzen
link verbs
load out analysis
magnetic south pole
make a blot on
manire
milk products
mingle-mangling
moneyback
Moriarty
multiple stars perimeter
musculointestinal
navigation light
nebulitic gneiss
negative camber
nervi digitales dorsales
non negative operator
OMGPOP
opposite buds
Oxytropis brevipedunculata
parent focusing
passing arguments to entry name
perfusionist
phosphate-bonded mica
platform car kiln
preedition
preparative radiation chemistry
process permanent file
pulse parameters standard
range of pitch
reference signal
retardative
san martinho
sedimentary parent materials
Selagosporis
solvent for extraction
spiders
spoon bow
spray guard
steam-jet sprayer
supersynchronous motor
tenotomes
terpinnate
thickwitted
track hoist
tunity
unavailable
undersleeping
union of symbol
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verification of postage
verts
waioli
wantrepreneurs
YSI