[网络] 聚乙二醇类;之聚乙二醇;聚乙烯二醇

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(152) / 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(324) / 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(138) / 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(186) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
Abdirashid
Abdullah ibn-Husein
adulterated flour
advanced capitalism
alimentaries
all-tackle
alternatingly
answering cord
assessing
bombykol
bransfield str.
business closed
caustic silver
chemical building material(s)
chlorphenindione
close-coupleds
coefficient of storage
countersurges
data entry panel
data multiplexing system
divertimentoes
edeger
electric engineer
Epilobium roseum
eradicant fungicide
euchelus foveolatum
exploitee
forestry history
forteen
four-plasma interaction
funds flow statement
galvanisings
gaseous oxygen
glance around
hazard warning flasher
heneggs
Hiace
hip bath tub
ilter
in the lap of the gods
isometric pressure
ITSEC
Laportea bulbifera
light-induced
lishuiensis
little stones
LIVC
make his market
mare's nest
mass optical memory
maximal normal divisor
multiman space vehicle
needle dipping needle
negative sequence impedance
optimal operation
osseins
outer canthic diameter
paragroup
paralling
particle hardening
Pawonków
photocurrent signal
plastic seal
pnw
print optional data
PRS (pattern recognition system)
pulmograde
Quemchi
relative receiving response
residual body
retinyl-
rhinocerite
roger federer
sapropel coal
self-propelled tool carrier
sematophore
semidress
shadow microscope
shingle barrier
silver coulometer
Slamannon
snoopily
snowflake schema
sour crop
specificity-diffuseness
sponge dough method
steam humidification
sterilizing effect
straw mushrooms
sucholo-albumin
symphonic jazz
system of units of measurement
thermal boundary
three-gun colour picture tube
turn-offs
underpatronized
unvehement
vasculatures
Vassenden
whole proteins
wigo
windmillers