[化] 聚对苯二甲酸乙二醇酯

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(112) / 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(294) / 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(111) / 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(158) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
-acusia
a crying shame
a hold
active monitoring technique
Acutatheca
adenomatous lipoma
Ahraura
aluminum sulfocarbolate
as black as jet
ashoks
balan dagi
bill presented for acceptance
bordentown
breakthrough surveying
brudney
caloneis linearis
cap weld
capitalization of monopoly profit
Carena
casellis
cellosoive
cerco
chemosurgical
Cnidian school
constant term estimate
crangonyctids
currency of payment
deep water trawl
degree of poly-merization
directexcitation
double-paned
draught regulator
electronic view of valency
extent in chief
extradoss
extreme trace analysis
facies articularis carpica
figpeckers
flat panel controller
fluid fuels
genus sclerodermas
glycogeneses
guide rail
hemimyasthenia
interactive reentrant assembler
limnetic fish
literarian
long-form bank reconciliation
Lumbang
lycopodium japonicum
Lysimachia japonica
margery-prater
megawattage
meta language processor
minitransistor
mucoproteid
North-east Passage
okuta
Orthotrichum
overdesirous
oxychlorinations
panty-hose
phytotomist
pinocci
placuna placentas
planer fixture
plastic
positional adjustment
pressure base factor
product group
pseudo-code language
pump box
radiations sensory
radioactive impurity
radioactive krypton isotope
reactance starter
retractory period
rightened
round-nosed
scrayfish
sedge warblers
self-extracting file
set long line
ship's bill of lading
spastic spinal paralyses
speedreading
splendish
sporangiorus
staff evacuation expenses
stalk section effect
staudt
surface roughness designation
Tenrikyo
three-linest
under current protection
user stack pointer
valid time-sharing system command
Vanier, Georges P.
varick
wet back
width of main sideband of modulated vision signal
worldwide gravimetric basic point