音标:[ˈvɪtri:əs ˈsilikə] ;
玻璃状[透明]石英, 流态硅土
词型变化:名词复数形式 : vitreous silicas
【近义词】

Plant Self-defense Plants may appear to be helpless in the face of hungry,toothy animals but many plants have evolved interesting systems of self-defense. Coarse meadow grasses are a good example. If you run your finger along a blade of coarse grass,

发表于:2018-12-31 / 阅读(75) / 评论(0) 分类 英语听力文摘 English Digest

AS IT IS 2015-07-14 Silica Sand Mining Worries Communities 美国硅砂矿引发社区担忧 The United States is increasing production of oil and natural gas through a process known as fracking. This process is sometimes called hydraulic fracking be

发表于:2019-01-12 / 阅读(102) / 评论(0) 分类 2015年VOA慢速英语(七)月

AILSA CHANG, HOST: Despite mounting evidence and a stream of dire warnings, federal regulators and mining companies failed to protect coal miners from toxic dust. MARY LOUISE KELLY, HOST: NPR and the PBS series Frontline spent more than a year lookin

发表于:2019-01-19 / 阅读(103) / 评论(0) 分类 2018年NPR美国国家公共电台12月
学英语单词
6-Hydroxytropinone
64-bit memory chips
a queen bee
ackerson
adrenal hypoplasia
Aeschynanthus radicans
aphthaus stomatitis
avoidable cause
backup and recovery
baregine
bitemary
Brewster magnifier
Briggsia dongxingensis
bundle of fun
cementing unit
chlorisondamine
chrome chromchre
compone
computation and adjustment of traverse
computer courseware
crowtrees
CZCS
dental floss holder
diamino dicarboxylic acid
diapiric fold
digital tracking system
dosze-peres
double solvent extraction
Drumfree
ego-consciousness
esselens
ethician
family lasiocampidaes
fuel-flow totalizer
genus Percina
hana odori (japan)
heat(ing) effect
Herfelingen
Huasco, Salar del
hyperbolic region
insurer's interest
kidney malpighian corpuscle
lateral supraclavicular nerves
law of association
lifter drawing bar
low-voltage distribution equipment
lower cannons
manipulating
meanies
meathook
Mereprine
Merkels tactile disk
minimum stress-intensity factor
N-acetylhexosaminidase
negative justfication
neutralizing hydrolysis
noncondensable
octavalvifer
Ophioglossum
optical glass fiber
overdocuments
parmarion martensi
passing loop
pathogen-related(PR)protein
pendulous fibroma
perforation of Meckel's diverticulum
phase matched for parametric processes
planning procedure
positive convergence
positive displacement screw type compressor
principal conjunctive normal form
pupilmaster
range tone
ratherest
reflection loss
rigidity factor
scotch carpet
scotias
sculling propulsion
seismic energy
self-stip
shuken
sine-curve shaped structure
SPVD
structural hazard
studio art
sulfinol process
sulfocarbimide
telemeter processor
transfer RNA gene
trencher
Trisetacus
type of documentation
una voce
unboasting
under detention
under its own steam
unpumpable
Ust'-Kulomskiy Rayon
voice frequency carrier telegraph
wizard sleeve
Zuitzer