[化] 顺式构型聚合物

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(147) / 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(178) / 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(158) / 评论(0) 分类 Scientific American(一)月

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(164) / 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(212) / 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(164) / 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(214) / 评论(0) 分类 Scientific American(四)月

This is Morning Edition from NPR news. I am Steve Inskeep and I am Susan Stamberg. Russian and Chinese forces today begin 8 days of joint military exercises. Some ten thousand troops are expected to take part, making this their largest joint military

发表于:2019-01-08 / 阅读(231) / 评论(0) 分类 2005年NPR美国国家公共电台

By Robert Raffaele Washington 27 March 2008 A new type of surgery may make it easier for patients who would otherwise require a more invasive procedure. The new type of operation makes it possible for doctors to remove unwanted tissue through a patie

发表于:2019-01-09 / 阅读(181) / 评论(0) 分类 VOA标准英语2008年(三月)

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(122) / 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(233) / 评论(0) 分类 VOA标准英语2016年(二月)

As was the common practice with the gods of Olympus,Zeus and Hermes were visiting the world in disguise.One day they came to a village.At a thousand house sthey knocked,and a thousand times they were refused rest and food and drink.At last

发表于:2019-01-30 / 阅读(201) / 评论(0) 分类 阅读空间
学英语单词
5-bromo-2'-deoxyuridine
Abeele
acute toxic effect zone
adhesive culture
ancillary shoring
anti-tank guided weapon (atgw)
appearances
arch-type culvert
azimut
balancing arbor
basement fold
belnick
beta abstraction
bickmore-spellmire distribution
black-and-tan terriers
card key
carrier-side frequency level difference
cat bear
chelminski
chondrify
clear of
CNC boring machines
cosecant-squared beam antenna
cross-country skiing
curfuffling
denatured
density packing
diaminocarboxylic acid
digital termination service
do something by deputy
draught board
drom
Dual Monarchy
East Van
eastsides
economic geographical location
electricity and gas tax
Exo-maltotetraohydrolase
fibrovascular cord
First Nation status
fully bleached linen
gains ground
gastro-adynamic
gerall
grenat
guttra
handballing
HCT-8/VCR
Hirvaskangas
hole-type nozzle
huckleberry finns
i-scoven
I. L. R.
ice stadium
image analysing computer
imbuition
incomplete
incursive
interarticular disk
interference filter
joyingly
light scissor truss
listees
May Week
mermithogyne
metamorphic malware
Mixobar
moderatelength
monophase
nitrobacterial
nitromagnesites
not worth a darn
open order miscellaneous detail
ozones
Paget-Schotter's syndrome
pre-paid
programmed load control
quantitative ethology
RAMIGM
raymonda
reaction selectivity
remote printer
rotating disc type
roxanna
saltmouth
security clearance
semidet
slab floor
snetched
statefulness
static suppressor
Sunday Express
swirling effect
tall buttercups
Titanhedenbergite
triceps brachii m.
trivalent actinide
tv black
unipolar group
vahajis
vena