热固性聚合物,热变定聚合物

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t

发表于:2018-12-24 / 阅读(169) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

发表于:2018-12-24 / 阅读(193) / 评论(0) 分类 Scientific American(三)月

Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c

发表于:2018-12-24 / 阅读(172) / 评论(0) 分类 Scientific American(一)月

backset, n 挫折,倒退;涡流,逆流=check 【记】backset=set back-倒退 【反】hike(n 远足,增加)

发表于:2018-12-30 / 阅读(226) / 评论(0) 分类 不择手段背单词

1. diathermy /'daɪə,ɜːmɪ/ -- method of treating disease by genereating heat in body issues by high-frequency electric currents Diathermy may prescribed for arthritis, bursitis and other conditions requiring heat treatment. 关节炎、黏液囊炎

发表于:2018-12-30 / 阅读(171) / 评论(0) 分类 突破英文词汇

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 whom [ hu:m ] I don't know to whom I o

发表于:2018-12-30 / 阅读(174) / 评论(0) 分类 每日攻克5词

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 miss [ mis ] I'm sure that everybody w

发表于:2018-12-30 / 阅读(224) / 评论(0) 分类 每日攻克5词

Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s

发表于:2019-01-02 / 阅读(182) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(238) / 评论(0) 分类 Scientific American(九)月

Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don

发表于:2019-01-08 / 阅读(179) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(234) / 评论(0) 分类 Scientific American(四)月

必备知识4:一些必要的词根(stems) -anthro-,-anthropo- human anthropology -aster-,-astro-,-stellar- star asterisk -audi-,-audit- hear audience -auto- self autograph -bio- life biology -capit- head, chief capital, captain -ced-go, move,yield p

发表于:2019-01-08 / 阅读(240) / 评论(0) 分类 雅思英语

set of wheels free-wheeler Wheel是轮子的意思。轮子是在很久以前就发明的,现在都没有人记得到底是谁发明了轮子。可是,轮子的发明对人类做出了非常大的贡

发表于:2019-01-08 / 阅读(203) / 评论(0) 分类 美国习惯用语

LONDON, Feb. 9 (Xinhua) -- Reigning Olympic champion and world record holder Dayron Robles will go head-to-head with reigning world indoor champion Liu Xiang of China in a blockbuster 60m hurdles race at the Aviva Grand Prix next Saturday. It will be

发表于:2019-01-11 / 阅读(196) / 评论(0) 分类 英语新闻

Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o

发表于:2019-01-12 / 阅读(142) / 评论(0) 分类 2016年VOA慢速英语(九)月

'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded

发表于:2019-01-14 / 阅读(258) / 评论(0) 分类 VOA标准英语2016年(二月)

Solar power 太阳能 The third way 第三种方法 A new method of making electricity from sunlight has just been tested 一种从太阳光得到能源的新方法正在尝试 AT THE moment, there are two reliable ways to make electricity from sunli

发表于:2019-01-26 / 阅读(200) / 评论(0) 分类 经济学人综合

李华正在为朋友的生日party做准备,她生平第一次烤了一个蛋糕。今天李华会学到两个常用语:from scratch和all set. LH: Larry, 这是我烤的蛋糕,你尝尝。这可

发表于:2019-02-03 / 阅读(288) / 评论(0) 分类 美国之音《流行美语》

MADRID, Jan. 7 (Xinhua) -- FC Barcelona face one of the most difficult games of the season when they face city rivals Espanyol on Sunday night. Newly crowned World Club Champions, Barca travel to the Cornella-El Prat Stadium after starting the weeken

发表于:2019-02-06 / 阅读(224) / 评论(0) 分类 英语新闻

音乐咖啡厅:Hey Monday - Set Off 相关介绍:Hey Monday是近来比较优秀的一支女声流朋乐队, 签约于Decaydance唱片公司, 成为Fall Out Boy, Panic at Disco, The Academy Is...等的同门师妹, 也是Decaydance旗下继The Hus

发表于:2019-02-18 / 阅读(247) / 评论(0) 分类 音乐咖啡厅
学英语单词
alive and well
ambient stray magnetic field
anti-slip finishing agent
atomic raw material
bags
bencianol
blocklengths
boelcke
bricks and mortars
bronchoscopy
bullate
calculate
calenderstack
Ceboruco, Vol.
cheeses off
choubnikovite (schubnikovite)
ciliary muscles
cognitive self-regulation
cooldrink
counted number
counting control
crystallizing force
diversity of modulation
Domei
dptacs
dynamic protection
electric melting
electrophoresis chip
feminal
five-unit teletype code
floor sink
grinding apparatus for lathe centers
Hagworthingham
have someone's ear
heliconia psittacorum
hickling
honey cake
host interface controller
hsiung-kaplow virus
huytons
I-PNNI
ice rise
initial turning time
intersatellite
karev
magneto coil
marianisma
mechanical grinding wheel forming equipment
Microtoena maireana
Mongdok-to
montigenous
mountiess
multiinjector
Munchausen, Karl Friedrich Hieronymus, Baron von
neutrality of the central bank
no value
nonexecution
nonruggedized
olpins
on line equipment
on one's game
on task
orexis
over-loading
oxy-clean
pattern matching operation
petrol chemical
powa
preliminary mentor
programme log
queneau
rail haulage system
railroad trains
random cross winding
reactivation of quoted shell company
rolling stops
salvia divinorums
sayigh
seawater chemical resources
semiautomatic keying circuits
shipwrecker
speak for yourselves
spiral hand brake
starknesses
Stephane Grappelli
suborder Homoptera
swing bolster link
switch interlock socket
synthetic steam cylinder oil
Telford base
the guildhall
total drag
trap tree
tuck in someone
turn sth over to sb
unappertaining
unipivot
unreligious
water-jet booster
wave transmission
Yueanxin
zed reaction