(polyethylene 的复数) n. 聚乙烯
[化] 聚乙烯
plural of polyethylene
n. a lightweight thermoplastic; used especially in packaging and insulation

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(36) / 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(217) / 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(40) / 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(91) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
a book stand
abaco
alizarin carmine
all weather body
Am. D.
anisomery
anti-fungus
arrow poison
automatic data editing and switching system
bedding sand
begorrah
booted and spurred
bromobenzonitrile
bundle triangulation
caddick
cavefish
celebrates
chromium(iii) sulfate
claim contract
Classified Case Records of Celebrated Physicians
Comoro Islands
connect function
Cristobal Colon
cumulative weight over size curve
Cyprzepam
dextrosuria
double-sided reinforced concrete jetty
electro-optic transducer
electrochemical formation grinding
elucidated
enterolignans
expressionable
female-sterile mutation
gerontocratic
glycyroside
golymin
gundo
hadfields
harmonic integral
hemistola piceacola
Hengchow
high-pressure side
Hubble law
hydrofined oil
igawa
Ilero
ilulissat
indicating micrometer calipers
indium gallium arsenide phosphide (inaagsp)
Innokent'yevskaya
intimate mixing
intracratonic positive area
jacobson's commissure (or jacobson nerve)
jigamarees
letter character
matthiessen
mediumclouds
metarteriolar
milking machine pump
moldy flavor
monochrome test pattern
National University of Ireland
net basin supply
New-Agey
North Baltimore
phase equalizing network
physical inventory method
Premature exasperation
preserved account
Processus vocalis
program line
ptygmatc fold
quadridigitate
radioactivated
residential market
restriction of representation
Rheedia
screenscrapes
scripturalize
semidiurnal tidal harbour
septaria(septarian nodule)
setars
shoulder aside
Soxer
speckle-shearing camera
speed-ratio control
sphere trough pair
stage effects
step induction voltage regulator
suck shit
supralingual ganglion
tax deposit system
thermal neutron flux
thiomolybdate
TMJ stress syndrome
toothshell
true polymerization of olefines
Ulaanhudag
valse (europe)
visitor centre
wind carving
Zincali