[网络] 可生物降解

适合3D打印的环保塑料 WASHINGTON As if we didnt have enough of it, the new must-have gadget - the consumer-grade 3-D printer - works with plastic. Researchers in Belgium say they have developed a new environmentally-friendly plastic, suitable

发表于:2018-12-16 / 阅读(305) / 评论(0) 分类 VOA标准英语2016年(二月)

Matthew: Hey Kat, you were just telling me about all the pros and cons of different renewable energies and you just got me thinking we're going to run outof oil in the next couple of decades. There's reports that say we're going to run out of oil in

发表于:2018-12-25 / 阅读(270) / 评论(0) 分类 原版英语对话1000个

86 去痛片须慎用 DATE=8-16-01 TITLE=SCIENCE REPORT - OxyContin Warning BYLINE=Jerilyn Watson (Start at 1'02

发表于:2019-01-02 / 阅读(470) / 评论(0) 分类 科技之光

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The common method of closing a surgical incision is simply to stitch the patient up. There are some issues, though. Good stitching can be challenging,

发表于:2019-01-08 / 阅读(357) / 评论(0) 分类 Scientific American(四)月

Asia's plastic industry is growing, with China and India challenging established producers such as Thailand. Now, there is increasing attention to the environmental impact of plastics. Both environmentalists and industry executives agree biodegradabl

发表于:2019-01-11 / 阅读(279) / 评论(0) 分类 VOA标准英语2010年(二月)

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(310) / 评论(0) 分类 2016年VOA慢速英语(九)月

Todd: So, Steven you've been talking a lot about adventures you can do in your country. Do you have any stories of adventure that's happened to you in your own country of Costa Rica? Steven: Well, when I was in middle school, my school decided to tak

发表于:2019-01-25 / 阅读(309) / 评论(0) 分类 英语趣味课堂

Beginners. Well, it's time for a new dog. For the past year, we have been a one dog family. But, you know, our dog, Rosie, is a wildly social lady. She goes crazy any time she meets another dog, a cat, a mouse, or a bird, let alone a human. But, the

发表于:2019-01-28 / 阅读(389) / 评论(0) 分类 英语博客 A cup of English

By Melinda Smith Washington 14 May 2007 Top executives of the company that makes a powerful painkiller called Oxycontin admitted this week they lied about the drug's addictive qualities in order to boost sales. As VOA's Melinda Smith reports, worldwi

发表于:2019-02-03 / 阅读(409) / 评论(0) 分类 2007年VOA标准英语(五月)

Beginners. Today, Foxy had an appointment with the vet for vaccinations and a general check-up. She is about eight months old, so she needed her second set of vaccinations. The vet also needed to see if her growth was normal and healthy. I put her in

发表于:2019-02-07 / 阅读(409) / 评论(0) 分类 英语博客 A cup of English

If you're a home gardener you may soon find that the pots you buy flowers and plants in are made from chicken feathers. Yes, tons of feathers that go to waste every year can now be transformed into plastics. Two Washington-area scientists are using f

发表于:2019-02-07 / 阅读(343) / 评论(0) 分类 VOA标准英语2010年(五)月

Part 3. PBSa biodegradable plastic product. Keywords. plastic, new solution, biodegradable plastic, break down, PBS. Vocabulary. PBS, biodegradable, tableware, microorganism, enzyme, degrade, dump. Environmental protection is a big issue nowadays. Wh

发表于:2019-02-15 / 阅读(397) / 评论(0) 分类 Step by Step 3000 第二册

Rajid: What are you doing? Nicole: Im putting my garbage into the garbage can. Why? Rajid: Dont you recycle? Youre supposed to separate out your recyclables and put them in a separate bin. Nicole: I know, I know, but who has the time? I dont have tha

发表于:2019-02-18 / 阅读(276) / 评论(0) 分类 地道美语播客

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(258) / 评论(0) 分类 英语时差8,16
学英语单词
acid-resisting brick
adjustment mechanism of the balance of payment theory
air defense operations team
amplitude adder
anterior intercondylar area
aspartyl proteinase
Bangriposi
battery-operated light
be on the rope
Beaufort, Henry
brillo-pads
coarse tuning
communities of interest
community facilities
conditional logit model
configured-out
contra-rotating screws
corona pin
counting sequence
crakers
Dedeleben
deribosylation
Donnan potential
earplugs
ease of
ecologic setting
Exner's, centre
fairleader
fire coupling
floor contamination indicator
foxhunts
furaltadone
garrotes
give ... in charge
golf course
heating coils in bunkers
helicranes
high-burn fuel rod
hunt where the ducks are
IFABP
invisible exports
Isoevodiamine
lead totanate ceramics
liquid-nitrogen
locomotive kilometrage
long-lives
marsh marigolds
mean low water neaps
megablast
mixed liquor
modernized technological processes
myloma
n-butanes
natural causes
Ndikeva, Mt.
non-giving
nonrugged
normocyte
not put it past sb
oiler submarine
packet telemetry
part-time bowlers
pattern paint
perosis
phalangers
phenotypic sex determination
Pine Island
piston pin boss
political writer
potassium ferric sulfide
prepossessors
public forum
radio-telephones
Rapid Horn
reaction matrix
rete subpapillare
scopecamer
shanges
sharing of losses
single bounce
slag off
Snickers pie
spermotoxin
spinal hemianesthesia
Stemmen
subcontrols
suspension-fired boiler
sylvane
sympathy vote
takeoff checklist
tapering freight
Taylor R.
temporary provisions
thiodiphenylamine
thyrocervical ducts
true coincidences
two row check row planter
Villeneuve-lès-Avignon
visitresses
water-rates
william tindals
without a word