[化] 聚碳酸亚乙基酯

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(197) / 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(369) / 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(159) / 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(224) / 评论(0) 分类 英语听力文摘 English Digest

日常生活中,意外伤害很难避免。如果我们不及时救治或者操作不当的话,很可能会对自身或者他人的身体造成伤害,所以,掌握一些急救常识非常必要。下面我们来看一段关于学习急救的对

发表于:2019-02-26 / 阅读(222) / 评论(0) 分类 英语口语
学英语单词
aerial extinguisher
anode streak
aquae sterilisata
asphaltic base
Atractylis lancea
Azilal, Prov.de
bar complex
biocidal treatment
bouvards
box-pleated
Brahmaputra River
BRL-2039
calcium ATPase
Catholicised
closing capacity
coin machine
coinvestors
come down hard on sb
come down plump
concurrent image copy
confusing coloration
crutchlike
cumber grounds
cylinder head bolt
disorderly industrialization
explosive distance
external debt standstill agreement
eyelet-hose irrigation
fall abreast with
fare-paying passenger
fischetti
flour confectionery
foreign purchasing
form design sheet
forty-fourths
genus thunbergias
glaucomas
high water ordinary neap tide
high-producing
household management
hurricane eye
in its own right
information film
initial code vector
insolvency assignee
jet-age
Kahanism
labial necrosis of rabbits
liver palm
Mannich condensate
metatheca fold
mud drum
neruropsychiatry
olivine pyroxenolite
orbiculata
other recordable optical disc drives
over-dresses
overhead spending variance
oxindol
papadams
photometric computer
place of detention
plant warfare
power system collapse
preadolescence
press dumper
production period
propose a toast to
railroad tank car
ramus posterior nervorum spinalium
reciadding
redundancy standby
root van
rotor bar
safety deck
school regulation
shallow end
shanghaiing
Silba
skidresisting
Slimlandia
software maintainability
solubility mutual
story lines
syndrome of yang deficiency due to yin excess
T phage
Tannheim
teleprinter grade service
temperature range of crystallization
test for reinforcing plate
tetrachlorodibenzodioxins
topazes
transuded
trif
unknight
vesiculogram
vice-chamberlain
water pressure gage
weinbach
wheelhead set
whittleseys
X interface