二氯硫化硅

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)

I couldn't get over this mess. The federal government is confirming what Joan Glickman of Pompano Beach, Florida suspected all along. Tainted drywall from China is giving off a harmful gas that's turning her air-conditioning wiring black, causing it

发表于:2018-12-20 / 阅读(51) / 评论(0) 分类 cnn2009年(十一)月

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(105) / 评论(0) 分类 60秒科学

From VOA Learning English, this is the Health Lifestyle report. Garlic is one of the most common cooking ingredients around the world. Many dishes in Europe, Africa, Asia and the Americas use this strong-flavored vegetable. Garlic is similar to other

发表于:2019-01-12 / 阅读(83) / 评论(0) 分类 2016年VOA慢速英语(十二)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
学英语单词
adjustment of assets value
al hanish al kabir (great hanish i.)
alt schwerin
analog switching circuit
arsenostyracol
baronetage
basic failure rate
beardling
beautify the environment
bit-rate
chlorinity of sea water
cinereous vultures
clayborne
coelocentesis
cohesiveless soil
conic reflector
Cryptomorphite
cyclocryosurgery
debaathification
debt collecting
decoir
derma ptera
different N concentration
differential-wound field
dmcs
drycleanable leather
dympnas
electric-wave filter
electrooptic(al) control
elliptic orbiting capture
enumerated population
eraasi
exit wound
finaled
flagyl
flexographer
fundamental issues
GlcNAc
goldford
guiro
Hoogkarspel
idling tube
immunohistochemisty
international labor organizations
ITAM
jean sibeliuss
Kaithi
kimmins
legist
leucophyre
livered thickened oil
lowerchamber
madson
Marymass
matroid
mel rosat
mute as a fish
Ménessaire
nerdism
neurastheny
newspaper ads
Nicotiana longiflora
non volatile lubricant
non-judgemental
nudification
of survey
outher
overall payment aggreement
overridings
pakchois
pallidinine
parallel sessions
Permskiy Kray
prime number generator
print band
pronunciatory
queue request
rapid automatic check-out equipment
rawk us
Rhododendron fuscipilum
Rovereto
ryemeal
screw displacement matrix
serodiscordant
smoke plume density
sodium erythorbate
spot grazing
stall bar
stonecipher
streeterville
survey probe
Taean-ri
targeting signal
the game plan
Tre Signori, Pizzo dei(Dreiherrnspitze)
tribe of waterlines
tricarbonate
tumulate
underwater operation
usafs
yeah-yeah
zey