音标:[,pɔli,eθәli:n'^laikɔl] ;
聚乙二醇

情景对话: Walter: Not hydrofluoric. 氢氟酸就不会。 Jesse: Why not? 为什么不会? 知识点笔记: hydrofluoric 氢氟酸 1. 确定辅音 相对来说,辅音变化最少。 单词中 h,dr,fl,r 和 c, 都没有特殊和奇怪

发表于:2018-12-18 / 阅读(138) / 评论(0) 分类 英国学生科学读本

Why Teflon Is Slippery Teflon is the trademark name for PTFE, a type of plastic. If you own any non stick cookware, then you probably use PTFE on a daily basis. You might not realize, as you fry your morning eggs, that PTFE is one of the most slipper

发表于:2019-01-22 / 阅读(315) / 评论(0) 分类 英语时差8,16

Yael: I have a question for you, Don. Paper or plastic? Don: Not that question again, Yael. Does anyone really care whether their groceries are put in plastic or paper bags? Y: Sure they do. In fact, the city of San Francisco has taken an interest in

发表于:2019-02-23 / 阅读(133) / 评论(0) 分类 英语时差8,16

Why Teflon Is Slippery? 1954年,法国工程师马克格雷瓜尔(Marc Gregoire)的妻子柯莱特(Colette)突发奇想,觉得丈夫用来涂在钓鱼线上防止打结的不粘材料特氟龙(Teflon)如果可以用在煎锅上,效果一定不错

发表于:2019-02-24 / 阅读(178) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
A-HELIX
acylamide
adapter sleeve
AIFV
air pollution survey
aircraft third party liability insurance
bagnoire
barred engine
birchlike
blender attachment
Blumberg sign
bobby brown
brashly
Bupleurum marginatum
capital account of balance of payments
centerpunch
charged particle detection
city cycle
coal-gasification
cobalt dioxide
color blindnesses
Conflans-Ste-Honorine
controlled flight into terrain (cfit)
danielpour
delivery of bill or cheque
DGS (distance-gain-size)
digester gas
dimethylchloroarsine
drag someone's name through the mud
electric property
electrical measuring instrument
end-of-field-mark
fission barrier
fleshlier
foramen obturator
forward space block
gozs
hatir
hookum-snivey
ingroup favoritism
internal injury caused by metallic tool
iodine consumption
Italo-
Japanese sea perch
jawar
joint product cost
juvenile progressive muscular dystrophy
Kaytanak
Kotatengah
lead engineer
leucobryum javense
Mandriva
mascarades
mean a thing
metallic protection
microprocessor instruction
Monceau-sur-Sambre
Morgagni's valves
multipoint tensor field
narrow band selective voltmeter
neutron total cross section
nitrogen recycle cooler
no-break power system
noninstructional
oxysulphuret
parieto-occipital approach
PeaZip
picroepidote
Plantago minuta
pledge the credit of
plunger elevator
preventing attack of malaria
pucked
pulse temperature adjusting control board
QTP
radiant level
radiosounding
rami cutaneus medialis
ranknesses
rathlin
Richter motor
rock floor
sex slaves
smallage
socialchauvinism
stability pond
stercorariuss
still-rooms
Sundridge
superdrive
supersensitive communication system
technical operations manager
telex-extended memories
three-four
Tibinizide
tio
two-phase machine
us could
Vieussens' foramina
W/X
West Springfield