[化] 单环硫化物

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(79) / 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(137) / 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(116) / 评论(0) 分类 2016年VOA慢速英语(十二)月

Black Tongues and Stomach Aches Don: Oh, no, Ya?l, I think I'm having a medical emergency. Quick! Call an ambulance. Ya?l: A medical emergency, Don? Are you sure? You look fine to me! D: But I'm not. This morning, I had a terrible stomach ache. And n

发表于:2019-01-26 / 阅读(68) / 评论(0) 分类 英语听力文摘 English Digest

Sewage stinks. But bacteria can make it smell better. Oh, yeah? That's true. Certain forms of bacteria feasting on sewage give off hydrogen sulfide, a really malodorous chemical, and one of several that give sewage its pleasing smell. In general this

发表于:2019-01-26 / 阅读(68) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
absolute coordinates
acmaeodera (cobosiella) luzonica volkovitshi
all show and no go
analogue-to-digital
anterior sclerotomy
armorbearers
ash field
atom physics
atomic electricity
azimuth discrimination
BeV range
bise brume
check clearing system
Chelonopsis albiflora
CLIST
clover clamp
coaxial line oscillator
conus auricomus
cosmic-ray magnetic rigidity
crural
CSS (communication subsystem)
culture capsule
different fields
direct projectivity
director of television programmes
discrete measles
dlr.
downy rosemyrtle root
electric insulation oil
EMCF
Erythrophleum fordii
excursory
faffin' about
fault-locating unit
flat plate switch
force-drive cam mechanism
genus Rhizophora
goandreturn
gonadotropinoma
Hanke-Koessler's reactions
implicit storage management
inhibiting gene
inner-vibrating extruder
integrated ship instrumentation system
intracutaneous inoculation
line pole
linguolabial
locate in position
lose one's patience
lotus
MAC (maximum air concentration)
madagascar alexandrite
Mahārī Jabbās
maltby
manure pile
marine radioactivity
Mariovo
militaster
minimal skin reacting dose
Modenese
mysophobe
naphthalic acids
nephilid
neuromalakia
niggarding
no show
non corrosive
noon break
occipitothalamic radiation
overkeeps
palaeosoil
palaeoxylological
part-time idleness
pathfinding
preppier
Previous Examination
primary sodium trap
programmable logic controller
Properzi process
protectoress
Pwr. power
radicalisin
rambled on
rectilinear vortex filament
revolving tray
rhr and core spray pump space cooler
Santa Fe Springs
screwpitch gauge
sealions
simple absence
slip coefficient
snerks
solar proton flux
spiculums
spraying process
Stirlingshire
that is to say ...
thought little of
unintrusively
vincristine sulphate for injection
warming kidney for dispelling cold
water of zeolite