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
a bad break
a dog
air furnace
Alcazaren
alloy diffused-base transistor
aloin test
anad
analytic posturology
antigalactosyl
Aquidneck Island
benzol-acetone
blochmann's corpuscle
burning bar
busbar bearing
button-out belt
Canis Major
carenum
catalyst-to-oil ratio
chemical pregnancy
CINS
co-grandmother
Coleptera
collar cloth
concentrated wave load
confocal backscatter laser velocimeter
contingent duty
covered arc welding
deh khvajah
downwash probability
encyclopedize, encyclopaedized
exempt dealer
five hundred miles
flat-abscess
forward series position
function generator
Fwbuilder
glutethimides
i-warre
impatronized
infection tube
Kayugoro
legal debate in court
Liliiflorae
linguistic semiotics
linsenerz (liroconite)
livens bomb
logical positivism
luxembourg-villes
machine buff
macroeddy current
magnetization vector
Mansell
Martin
method of exchange of members
mickelsons
modification of final judgement
molecular mixology
monodomains
monommids
multiculturals
multifunction display
multiplexed bus structure
natural fabric
nightops
noncoherent radar
numeric pager
oculocutaneous
orpines
out-drink
overpersuasion
Palmilsulfadiazine
pedesis
photobision
physical security measures
placitus
polyetherin
private patients
QPAT
quotient Lie group
ra-ra skirt
Radix superior
re-amplified
reed sweep
relay valve top cover
rhythm band
scanning high energy electron diffraction (sheed)
sciaenidaes
serian
simulcast
square law
stacked beam
subject to the scrutinyof
third speed gear
torque-rod
tripping lines
uneven numbers
uniform customs and practice of commercial documentary credits
vacuum-tube emission
VFVV
winnebagos
working cycle diagram
zone purification device