Researchers: Recycled Concrete's Time Has Come

Researchers: Recycled Concrete's Time Has Come SOUTH BEND, INDIANA Recycling in the construction industry has become big business. It's easy to find new life for everything from old windows to wood beams. But until now, concrete the most widely used

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Concrete is one of the most widely used materials on the planet. And this consumption comes with a heavy ecological price. Rouzbeh Shahsavari, a materials scientist at Rice University. Around 5 to 10 percent of total CO2 emissions comes from concrete

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In labs, bacteria may swim freely, but out in the world, including our bodies, bacteria often exists packed together, dense communities called biofilms, and these configurations can help them cause illness. Finding clues about how such bacteria group

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Michael通过破坏空调系统使牢区发生骚乱，掩人耳目。趁此机会，他和Sucre来到混凝土墙壁跟前准备凿洞。 [00:07.44]Listen and Share [00:41.42]Michae [00:48.10]Sucre [00:54.39]Let the bulls worry about the noise. [00:56.05]You worry about [00:56.53]how you'r

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Grammar Girl here. Todays topic is cement versus concrete. Guest writer Sal Glynn writes: Accuracy is important. You might think concrete and cement are interchangeable, but you'll quickly find that you're mistaken when some guy at Home Depot rolls h

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1.His proposal is very _______. We do not need any explanation. A. concrete B.loyal C.grey D.draft 2.This is a _______ computer, which we just bought for our research. A. detective B.luggage C.digital D.grave 3.The two pictures are _______. We dont k

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VOA标准英语2013--Volunteers Help Revive LA's Concrete River

Volunteers Help Revive LA's Concrete River Thousands of volunteers turned out on a recent weekend to remove the trash that has been deposited by winter rain storms. The Los Angeles River was lined with concrete in the late 1930s and 1940s, after year

学个词Learn a Word 第778期 Concrete

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DEVELOPMENT REPORT - Long-Life Concrete Bridges

DEVELOPMENT REPORT - Long-Life Concrete Bridges By Jill Moss Broadcast: Monday, June 07, 2004 This is Robert Cohen with the VOA Special English Development Report. Each year, road accidents kill a mil

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今天我们要学的词是concrete。 Concrete具体的，实质性的。美中战略与经济对话星期二结束。美联社报道说，The United States and China ended two days of high-level talks with few concrete results, 美中结束了为期两

英文短篇故事（纽约）178 Booze and Concrete Don't Mix

The bar owner was upset. His best customer was in the hospital. He had a head injury. What happened? the owners wife asked. He said, He drank too much. When he went outside, he fell down. His head hit the sidewalk. Now he's in the hospital. This isn'

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讲解文本： concrete 具体的，混凝土的 We still don't have a concrete timeline for the plan. 关于这个计划，我们还没有具体的时间表。 I can't tell you anything concrete. 我也不能跟你说得太具体。 疯狂练习吧！

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模仿文本： But its that process I want to discover about how piano brings the immateriality of his idea, his listening to this space through to the material, to the absolute concrete reality of the materials Im sitting on and amongst, the lead,

Researchers make sperm from stem cell in dish

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

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U.S. researchers discover human lung stem cell

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

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每一个孩子都是可爱的小天使，但不是每一个天使都能够幸福地飞翔。寂静的墓地里，小小的石碑上，冰冷的石头塑成一副没有表情的石像。那是被剥夺生命权利的小小精灵，永远地长眠于地