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
-throated
1-propylsulfinylpropane
acupoints on Ren channel
adrenomedullotropic
agreement sterling
annular distance
arc-through loss of control
ascending letter
automobile acquisition tax
avaya
Azo-rubin
beam spot size
bimalonate
broken open
cap ribbon
carriage bolt
charney-devore theory
commodity-type
composite particles
control contactor
curase
dash control
demagnetizing energy
deodoriser
deplantation
DePuy splint
diaphony
disintered
distrubutor road
Dizak
dorsal part of pons
drury l.
electric furnace transformer
faculence
gypsy cloth
hepatic portal canal
horizontal pulling technique
Horn Hd.
hypsophyll
interchangeable attachment
internal stay
INTP
joint facility costs
jumping second pallet jewel
karakuls
keying intermediate
Klinsko-Dmitrovskaya Gryada
Kollmoor
krohg
langsten
large strain
legere
lemming
LIRBM
loom abrasion
Macropus giganteus
major feedback
matteuccia struthiopteris (l.) todaro
meprobamates
metapsychosis
mongrelisms
muniate
nevirapine
night-vision
Olympos, Oros
out-of-town
paleopalynologists
petticoat insolation
planning schedule
plebifications
polygraphy
Porter, David
PTAB
Rankine vortex
rate of debarkation
re-packaging
recoverable reserve estimating
retrohepatic
sciatic dislocation
Search and Rescue Manual
self-recording displacement seismograph
serum prothrombin sonversion accelerator deficiency
single bus system
sneakboxes
sonic liquid level meter
spring-type self-starter
stainless capillary tube
subsurface current
Summerville
suntan lotions
system concept
the same old story
the Very Reverend
titanium gettering system
unsteady rotation
uop
value of sampling error
volipresence
voltage class
white-shoe firm
winding line