标签：Plastic 相关文章
Hospital Machinist Aids Medical Research医院机械师艾滋病医学研究 HOUSTON Many people who would have died from common ailments a few decades back are alive today thanks to advances in medical technology, including devices created by resear
VOA标准英语2014年(二月)
《英语流行话题阅读:语境识词3500》Unit 37 超级名模的靓丽诀窍
英语语境识词
Why Does Plastic Wrap Cling To Itself? What makes kitchen plastic wrap cling so maddeningly to itself, and so conveniently to the sides of bowls and plates? Plastic wrap clings for two reasons: its elastic and its sticky. That probably seems pretty o
英语听力文摘 English Digest
Leaves Inspire Better Solar Panels What do leaves and solar panels have in common? Both absorb sunlight and turn it into energy. But while solar panels typically have smooth surfaces, leaves have tiny wrinkles and folds that allow for maximum light a
英语听力文摘 English Digest
What Makes Windshield Glass So Tough? We tend to think of glass as fragilebut in fact, glass is pretty strong stuff. A flawless fiber of glass pulled lengthwise is five times stronger than steel! Although glass is quite strong, its also very brittlea
英语听力文摘 English Digest
AS IT IS 2013-07-12 2000 to 2010: A Period of ＂Unprecedented＂ Weather Extremes, Scientists Say From VOA Learning English, this is As It Is. Welcome to the show. Im Caty Weaver. Today, two reports about the environment. One explores climate condit
2013年VOA慢速英语(七)月
Two weeks later, Brian bought a sturdy wooden stick. He took it into Gristedes. He bought his groceries. The checker put them in four double plastic bags. He took the stick and the four heavy bags outside. He put the bags on the sidewalk. He put two
原版英语小短文
Why Teflon Is Slippery？ 1954年，法国工程师马克格雷瓜尔(Marc Gregoire)的妻子柯莱特(Colette)突发奇想，觉得丈夫用来涂在钓鱼线上防止打结的不粘材料特氟龙(Teflon)如果可以用在煎锅上，效果一定不错
英语听力文摘 English Digest
MARY LOUISE KELLY, HOST: Divers in California have stumbled on an unexpected source of plastic waste in the ocean - golf balls that come from coastal golf courses. Golf balls contain plastic and can emit toxic chemicals. And as NPR's Christopher Joyc
2019年NPR美国国家公共电台1月
MICHEL MARTIN, HOST: We've been checking in every so often with Boyan Slat. He's the CEO of The Ocean Cleanup. That's an environmental organization he founded to develop technology to clean up plastic in the ocean. Now, we spoke with Mr. Slat back in
2019年NPR美国国家公共电台1月