不能生物降解的,难以生物降解的

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(151) / 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(135) / 评论(0) 分类 原版英语对话1000个

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(199) / 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(147) / 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(162) / 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(184) / 评论(0) 分类 英语趣味课堂

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(188) / 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(204) / 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(150) / 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(150) / 评论(0) 分类 英语时差8,16
学英语单词
Acadian French
aceton
advance rentals
anatoxireaction
antonymys
assault boat,assault craft
assimilating tissue
association of stock exchange firms
Banie
batter gauge
be knocked koo-koo
Bhattacharyya
bipennifolium
border trade management
brohanskis
canalization
careers advice
changeover switch
chapter one
characeous
charge transfer transition
county station weather forecasting
cyclothymic
defect in wire
dispersidology
effervescing
electroceptor
engineering study
enocyanin
entrepreneurialize,entrepreneurialise
Enzactin
fale retrieval
fantme
fixed field language
flat-bottomed flask
foot itch
forevacuum valve
gear shaping recess
godier
highway toll
horizontal regenerator
hypersurfaces
intermells
J-bar
job request selection
juise
Kechika R.
Kompakka
L-indicator
Longwangmiao Formation
lost working hours unaccountable to workers
macro-residual stress
melanosis of conjunctiva
middle cut file
minursoes
molybdenum electrode
multiculti
musculospiral
nitti
nonprurient
original input data
paravariation
penetrate to
perforated mixer
periodicity of fruiting
Phlomis atropurpurea
plebeianize
plumbic hydroxide
polyhierarchies
prizegivings
protogonocyte
putrid stool
rate of scanning
redeemings
regional national autonomy
revised recognizer
revised statute
Ribérac
road-block
seem as
semidisplacement
silty-clay
Stadtbergen
successive rotational slip
superheated vapo(u)r
survey and drawing of investigation
syntrope
threo-disyndiotactic polymer
to avail sb of sth
tramp freight
Trienbolone
trouble indicator
two hundred-mile limit
ultimate duty
utility bonds
vollies
welded diaphragm
what if'
wikre
X-opac
zeuxis exilis
zips up