[化] 线型无定形聚合物

Truly happy and successful people get that way by becoming the best, most genuine version of themselves they can be. Not on the outside--on the inside. It's not about a brand, a reputation, a persona. It's about reality. Who you really are. 真正快乐

发表于:2018-12-18 / 阅读(131) / 评论(0) 分类 英语美文

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(150) / 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(179) / 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(159) / 评论(0) 分类 Scientific American(一)月

[00:01.54]Its amazing that theres actually saps 真神奇啊,还有多愁善感的人 [00:03.42]that cry at this. 会哭成这样 [00:05.74]What? Im not made of stone. 什么嘛?我又不是石头人 [00:08.62]Well, there you have it. 好了,该满

发表于:2019-01-01 / 阅读(193) / 评论(0) 分类 听电影学英语-朱诺

Ive opened the curtain of my east window here above the computer, and I sit now in a holy theater before a sky-blue stage. A little cloud above the neighbors trees resembles Jimmy Durantes nose for a while, then becomes amorphous as it slips on north

发表于:2019-01-02 / 阅读(361) / 评论(0) 分类 英语精美散文22篇

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(166) / 评论(0) 分类 60秒科学

By Leta Hong Fincher Most Americans paid little attention to the dangers of terrorism until al-Qaida 's September 11th, 2001 terrorist attacks on New York and Washington that killed thousands. But pol

发表于:2019-01-03 / 阅读(129) / 评论(0) 分类 VOA2004(下)--新闻盘点

Callum:Hello. In recent programmes in this series, Who on Earth are we? Marc Beebys looked at some of the more obvious ways that cultures can be different from one another -the different ways we use language, or non-verbal communication, for example

发表于:2019-01-07 / 阅读(665) / 评论(0) 分类 英语讨论

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(213) / 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(215) / 评论(0) 分类 Scientific American(四)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(123) / 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(234) / 评论(0) 分类 VOA标准英语2016年(二月)

Take a look out your window, put on your glasses if you wear them. 向窗外张望一下,有必要的话,戴上眼镜。 You might want to grab a pair of binoculars, too, or a magnifying lens. 也许你还想拿副望远镜或是放大镜。 Now,

发表于:2019-01-17 / 阅读(120) / 评论(0) 分类 TED演讲教育篇

66 神秘的彗星

发表于:2019-01-30 / 阅读(188) / 评论(0) 分类 科技之光

Truly happy and successful people get that way by becoming the best, most genuine version of themselves they can be. Not on the outside--on the inside. It's not about a brand, a reputation, a persona. It's about reality. Who you really are. 真正快乐

发表于:2019-02-13 / 阅读(147) / 评论(0) 分类 阅读空间

Display screens 显示屏 Going through a phase 相转变 A new way to create electronic images 新的电子图案显示方法 Wave of the future? 未来之波 LIQUID-CRYSTAL displays are a familiar and ubiquitous technology. But if Harish Bhaskaran

发表于:2019-02-16 / 阅读(143) / 评论(0) 分类 经济学人科技系列

本文是对新GRE重点词汇考法的总结和相关近义反义词汇的整理,希望对广大考生有所帮助。新GRE词汇虽然取消了类比反义,但是其重要作用仍然不容忽视,因此要想顺利通过新G考试就要首先将

发表于:2019-02-25 / 阅读(153) / 评论(0) 分类 GRE英语

Here are 9 ways to be a better person through self-development: 下面9个自我提升的方法有助于成为更好的人: 1. Be Willing To Change 愿意改变 In order to become a better person, you have to be willing to change. Change is the onl

发表于:2019-02-26 / 阅读(176) / 评论(0) 分类 英语美文