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(260) / 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(434) / 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(202) / 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(275) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
a-f
Adelostemma
age norms
Allodermanyssus
Alpine golden chain
axial force diagram
azatropylidene
Bad Aussee
bancs
Basket Project
bellows differential flowmeter
bis(heteroaryl)piperazine
booleanizing
C-grade
cardiac valvular chondrification
Casimir polynomial
circular luminaire
Clostridium botulinum
continuity fitting
coupler shank
dajuan
decidua membrana
dustsonde
economizations
expected annual volume
external ankle height
FRhMK
front walls
Fuchsstadt
general administrative expense
geographical factors
give a bond for
glass fiber reinforced melamine moulding material
Goldfussia austinii
goniometer system
hare's-foot fern
Helical Stripe
Heptous
HF welding magnetic bar
high speed cam
J.A.
Josephs
juke house
jungli
khatib
kitschiest
Laisse-faire
lithosporic
looka
Lord Mayor's Show
maarchantia polymorpha l.
magnetic substance
make a joke of sth
manganolite
market cleavage
mechanized application
metal contamination on catalyst
miocene series
molecular field approximation
motor ship (ms)
murgh
nontreaty
not much fun
Nāsirpur
odalprofen
off grade sponge
pepperina
perutzs
positional notation
positive definite
prospectless
put up
radioactive waste material
reinstalment
relative error
repent and make a fresh start
reserve starch
revolving joint
rhyton
rigid control linkage
romagnolis
salvoed
sandpiles
sarfatis
scrambling net
self-inflation
sheet-metal drawing
single impact ionization
steimy
still-fish
Streptococcus thermophilus
supererogate
Takatori-yama
technical purity
Tetrastigma obovatum
tin(ii) telluride
track athlete
travtive force
trip summary log
wheeled dozer
wide field