[网络] 聚乙烯亚胺

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(218) / 评论(0) 分类 英语时差8,16

Hi! This is Stever Robbins, host of the Get-it-Done Guys Quick and Dirty Tips to Work Less and Do More. Grammar Girl is working on her book this week and since I do a lot of public speaking, she asked me to talk about how to use similes and metaphors

发表于:2019-01-30 / 阅读(126) / 评论(0) 分类 英语语法 Grammar Girl

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(41) / 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(95) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
abn
actualizes
acuation
aerodromophobia
almifluent
automatic freight handling car
barfoot
beguile sb into
birthday honours
bond-trading activity
Bovactant
brilliant acid blue nas
british asianness
chirurgic
citreous
completion guarantee
congenital symphalangia
constant speed engine
countermanifestos
cystic cystitis
dentine caries
digital television system
dipyrryl ketone
distribution chromatography
domain-name
draw-screw
electric tachometer
end haul slipway
epiphyseal closure
equinoctial storm
Escherich's reflex
extended consequent stream
extended dislocation
face-pumped liquid laser device
fosu
fundiform ligament of foot
galib
gibellula araneicola
gilvor
goodsell
howella zina
imitant
importunated
incurvula
insect ravage
Kodarma
Lefroy, L.
lend ... a hand
life boat compass
liquid hydrogen loading liquid line system
luxury turnover tax
magnetic-ink character reader
maturation of ovum
microbars
miniliform
multi-row bearing
musculus levator pectoralis
nassal clip
neighboring ship suction
nonnumerical information
Norfolk wherry
nrg
ntn, network terminal number.
operating charges
pastroralism
pimpinella thellungiana wolff
pistia
plaster on metal lath
plot data
pneumatic dual-piston linear drive
ponda delgada
ponselle
potassium chlorides
Primula florindae
product mix
program collating sequence clause
rate of circulating flow
regatta
regulation of tidal water
reservoir bed
rigourous
San Juan Hill
Santa Maria
Sattajärvi
scottocalanus infrequens
secondary road
sector number
Siberian tigers
sigma star
single chamber liquid rocket engine
sit bolt upright
space block
state-treason
stiff upper lip
tankersleys
testing statistical hypothesis
transverse-module
try-work
uninsurable property
use and wont
vanitied
welder's head screen