[化] 多乙烯多胺

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(90) / 评论(0) 分类 英国学生科学读本

Interviewer: I understand you're interested in holistic medicine. Can you explain what holistic medicine is? Vivienne: OK. Holistic medicine, um, takes into consideration the whole of the person. Now

发表于:2018-12-26 / 阅读(167) / 评论(0) 分类 中级英语听力

Interviewer: I understand you're interested in holistic medicine. Can you explain what holistic medicine is? Vivienne: OK. Holistic medicine, um, takes into consideration the whole of the person. Now what this means in, in most holistic systems is re

发表于:2018-12-27 / 阅读(120) / 评论(0) 分类 北外英语中级听力

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(284) / 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(100) / 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(150) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
357
a clear head
abyssal alga
agency-employed
agrostaleyrodes arcanus
airborne digital control system
algarrobilla
alveolar membrane
Amaurosporae
anti-thixotropy
back-slope
bathe one's hand in blood
bill of draft
biologic time scale
blastomycess
bourrelets
bright ground wire
Calligonum cordatum
carnarvon ra.
chemical reaction flow
circulation time measurement
cnms
common voles
compact disc - extended architecture
control behavior
conveyer pawl spring
CYP1A
dermatosetula
design consignment
Digesept
double-Y connected rectifier
driffing buoy
Dyneric
earnings inequality
favourable trade balance
fixed word
fluorenone
funcall
gangbanger
gastrosplenic vein
gath (gat)
give possession
guruji
heavy purchase
Hegyeshalom
hemophlius hemoglobinophilus
hinalea
hulan
manganese-Vitriol
marsh fritillaries
milli-ohms
nevel
order of coefficients
panulirus cygnus
payment of money
periodic acid oxidation
permeation separating
photographic car
piliform muscle
plane of the ecliptic
planifolium
plankman
pneumotachography
pole positions
population ecology
probing step
proximolaterally
put atermination to
raw rock phosphate
reactor setup
receive packet list
reffo
requesting information
rhomboidal tetrad
ringo
s-a-c
sealed in fuel element
septal band
sequential count test
Silovayakha
snap lever
Sobolevo
space sleeping bag
specific sequence
step-reaction
storm maximization
street cleanser
tacho
telegraph set
textilis
three-wire connection
ticket sorting and issuing equipment
top steel feed roll
transmission mode
unraveled
unsafe condition
Van Slyke-Palmer's methods
white collagenous fiber
white man
yarn dyeing machine
youngbluth
Zarnān