[电] H类绝缘材料

material scientists admire spider silk for being lightweight and strong.now another arthropod product is getting into the act insect cuticle,the tough flexible material is inside insect skeleton.researchers at harvard * institute for biological inspi

发表于:2018-12-02 / 阅读(209) / 评论(0) 分类 Scientific American(十二)月

[00:03.89]You will hear three pieces of recorded material. [00:08.75]Before listening to each one, [00:12.90]you will have time to read the questions related to it. [00:17.55]While listening, [00:20.72]answer each question by choosing A, B, C or D. [

发表于:2018-12-03 / 阅读(249) / 评论(0) 分类 最新版英语听力教程

It Never Rains In Southern Claifornia Got on board a westbound seven forty seven Didn't think before deciding what to do Ooh, that talk of opportunities, TV breaks and movies Rang true, sure rang true

发表于:2018-12-14 / 阅读(404) / 评论(0) 分类 英语歌曲第五辑

This is Scientific American's 60-Second Science. I'm Karen Hopkin, this'll just take a minute. On February 8th, we told you about scientists who had created a device worn over the knees that could harvest the energy you otherwise waste while walking.

发表于:2018-12-24 / 阅读(149) / 评论(0) 分类 Scientific American(二)月

The warm waste environment of your mouth makes it a great place for bacteria, some of which keep busy causing cavities. Such dental difficulties were thought to a really taken-off for we switch from hunting gathering to agriculture and had a ready su

发表于:2018-12-24 / 阅读(151) / 评论(0) 分类 2014年Scientific American(一)月

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(184) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(176) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. After water, tea is the world's most popular drink. Now three New York City high school students have discovered what maybe a bruing scandal because th

发表于:2018-12-24 / 阅读(244) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science. I'm Cynthia Graber.This will just take a minute. Imagine giant fields filled with photovoltaic solar panels, soaking up rays. The best spots to put such panels are obviously sunny, with little rain. But

发表于:2018-12-24 / 阅读(133) / 评论(0) 分类 Scientific American(八)月

This is Scientific American 60-Second Science. I'm Cindey Graber. This will just take a minute. When TV sets die, they usually end up incinerated or in landfills. But now researchers from Englands University of York believe theyve found a valuable us

发表于:2018-12-24 / 阅读(193) / 评论(0) 分类 Scientific American(七)月

[00:03.81]bottom line :结余;结算 [00:05.82]bundle :n.搭售商品 [00:07.49]convention :n.(专业)展览会 [00:09.37]demonstration :n.展示 [00:11.46]entrance :n.入口 [00:13.29]go with :选择;决定采用 [00:15.17]high traffic :a.高流量

发表于:2018-12-31 / 阅读(287) / 评论(0) 分类 商务英语分类核心1000词汇

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. It might look and even feel like paper, but a new material created by scientists at MIT is designed to be an oil spill super-absorber. This technology d

发表于:2019-01-08 / 阅读(220) / 评论(0) 分类 Scientific American(六)月

If scientists have their way, we may someday be tapping maplesnot for pancake fixins, but for power. Because researchers from the University of Washington in Seattle have found theres enough electricity flowing in trees to run an electronic circuit.

发表于:2019-01-08 / 阅读(175) / 评论(0) 分类 Scientific American(九)月

This is the VOA Special English Education Report. No one likes to make mistakes. But a new study says organizations learn more from their failures than their successes, and keep that knowledge longer. One of the researchers was Vinit Desai, an assist

发表于:2019-01-12 / 阅读(184) / 评论(0) 分类 2010年VOA慢速英语(九)月

Graphene Called Amazing, Versatile Material of the Future 前景光明的多功能材料石墨烯 In 2004, two scientists at the University of Manchester in England isolated a carbon-based material called graphene, with some unusual properties. Andre

发表于:2019-01-14 / 阅读(202) / 评论(0) 分类 VOA标准英语2014年(二月)

Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h

发表于:2019-01-14 / 阅读(195) / 评论(0) 分类 VOA标准英语2014年(七月)

This is scientific American ,60 second science. Im Chris D..ta. Got a minute? In less you have a pair of noise-cancel headphones. Flying can be annoying to the ears. A lot of low-pitch rumbling makes it into the cabin. The problem is ,the wings ,floo

发表于:2019-01-20 / 阅读(224) / 评论(0) 分类 2015年Scientific American(五)月

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得 10 到 30 积分的奖励 ! Thank you !

发表于:2019-01-20 / 阅读(185) / 评论(0) 分类 2015年Scientific American(六)月

Today, the Minister of Finance, Bill English, read the Budget in Parliament. The Budget is a plan of how much money the government has and how the government will spend it. For the last few weeks, Bill English has told us some of the things that woul

发表于:2019-02-17 / 阅读(152) / 评论(0) 分类 新西兰英语

19.At least 1 CTN. 至少一箱/件。 20.Theres minimum quantity.有最小起订量。 21.Can they be mixed?可以混装吗? 22.Mixed packing.混装。 23.Just a moment. Let me check.稍等,让我查一下。 24.Same price/size. 一样的价格

发表于:2019-02-19 / 阅读(201) / 评论(0) 分类 实用英语
学英语单词
acanthurus blochii
agamonoecious
amniotomies
anticlastogenic
astatic controlled system
aten
atka
baroclinic motion
be worthy of being done
benevolentiae
brachial cell
burnt-up
C. S. & P.
Cadamstown
caloee fibre
calyculus
campus wide information system
cartelized
cast iron guide
ceruminous gland
charity case
chloromethyl ether
climacterical
combustion cycle
control-configured vehicle
cracking stock
deb
deliberalize
distinguished vertex
dosis curativa
double-frequency recording technique
Dragerton
draught capacity
electrooptical device
enguerrand
epirogenesis
equivalent parts per billion
etched vert
feder joint
full spread
Gari, R.
gave me a shout
general resistance
germanium-doped silica core multimode fiber
harbor city
hyperinosaemia
indrani
internalization
isocholine
keep an eye open for
Madeira Islands
masonry support
meninges (pl. of meninx)
name selvedge
natural affiliations
neutralizes
one sheet
opiniastrous
orphanisms
outmoded equipment
pathotropism
pauciserial
phonetician
pictureshow
pistosia dactyliferae
PMin'
Polus anterior
powder blowing-in technique
protamine insulin
pseudo-objective
pugnaciousness
pushing steering line
radix medialis tractus optici
rahmats
ray douglas bradburies
reconcentrating
red gland
rescheduled
Rivet(t)ing
Romulian
round nose turning tool
running change
sabkhas
sapromyza (sapromyza) faciatifrons
self adaptive damping
semigod
spectroheliometer
strainless
stranguria due to overstrain
subsampler
sulfose
thingyou
thyrotherapy
tissue section
training loop
treelawn
true test
use of the whole body
VX gas
well-fortuned
William Jennings
Zefazone