音标:['silikә] ;
n. 硅石, 二氧化硅
[化] 二氧化硅
n. a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
词型变化:名词复数形式 : silicas
考试类型:[托福]
词性分布:
名词100%

silica的用法和样例:

例句

用作名词(n.)
  1. Silica, in fact, is a desirable impurity because it is one of the reactants.硅石实际上是一种有用的杂质,因为它是一种反应剂。
  2. Our company has our own silia stone moutain and silica powder producing plant.我公司有自己的硅石矿山和硅石粉加工厂。
  3. The government sets up new health standard for respirable silica dust in the air of workplace.政府出台了新的工作场所空气呼吸性矽尘卫生标准。

词汇搭配

  • silica gel硅胶
  • silica glass石英玻璃,硅玻璃,二...
  • free silica游离二氧化硅...
  • silica brick硅砖,石英砖...
  • cellular silica蜂窝状硅胶
  • colloid silica胶质硅石
  • silica deposit二氧化硅沉积...
  • active silica活性二氧化硅...
  • silica cement硅土水,泥砂浆...
  • silica sand石英砂
  • fused silica熔融石英
  • colloidal silica硅胶,胶体氧化硅...
  • amorphous silica非定晶硅,无定形硅石...
  • silica refractory硅质耐火材料...
  • silica content硅含量
  • vitreous silica玻璃状石英,流态硅土...
  • silica sol硅溶胶
  • crystalline silica结晶二氧化硅,石英...
  • activated silica活性硅,活性硅土...
  • silica wool石英棉
【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(219) / 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(239) / 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(242) / 评论(0) 分类 2018年NPR美国国家公共电台12月
学英语单词
age life depreciation method
airport-construction
anthoney
aphodius (aparammoecius) nishikawai
arc tangents
au fait
auriculovenous pulse
batch-entry mode
bayley infant neurodevelopmental screener (bins)
ciders
cobalt based alloy
copperoxide
Corydalis gyrophylla
cost engineer
cracking case vapour line
cysto-duodenostomy of pancreas
cytotoxicenzyme
decision speed
diary microbiology
distributed communicaition processor
dynamic frame
electromagnetic stirring
electron microfractography
enriques
ergkryptinine
expenditure on revenue
external purchasing power of money
fenario
fluoro-muscovite
gather breath
get to the end of one's tether
gitanos
goose skins
grade inflation
Haitian capital
hand-over-fist
herpes zoster viruss
high-sr aragonite
hit town
hozho
human population
hypoeryhtrovythemia
icterus praecox
ignition spontaneous
iming
impersonal security
in ... book
indiscriminateness
Intermag
ionizing length
jali
jolling
knowsleys
Les Baux-en-Provence
lime sludge
linear damage rule
Lluchmayor
loop box
macrostachya
major-market
matching condition
maximum takeoff weight(mtow)
metakinesis stage
metasaccharic acid
minginishes
misdirection
mobelphone
Norlestrin-21
organic carbon analysis
outraising
peritidal area
plancarte
popular administration
post-merger
pseudascozonus racemosporus
pusher barge line
putting-down machine
quick-bar
rain-swept
refashionments
repealest
rubber insulating tape
schurs
shin bone fever
speed of approach
splash pad
sulphacetamide
surface mount design (smd)
tailstock base
tap for sewing machine
thallous dichromate
thermal shroud
tracer agent
transvevse pressure angle
travertine pellet
tumefies
tuned-reed relay
urethra
vow-breach
waviness of metal body
well judged
yottakatals