单词:Hadfield's manganese steel
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This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. It might look and even feel like paper, but a new material created by scientists at MIT is designed to be an oil spill super-absorber. This technology d
This is Scientific American -60 seconds science. Im Cynthia Graber. This will just take a minute. A coal mine can degrade its local environment. But fungus may inadvertently help clean up the mine with its own waste products. Researchers worked with
This is scientific Americans 60 second science,I'm Cynthia Graber.This will just take a minute.A coal mine can decrease the local environment but a Fungi may indivertantly help cleanup the mine with its own waste products. Researchers worked with the
By Ade Astuti and Nia Sutadi Washington 01 October 2007 Nicknamed the Steel City because of its roots as the center of America's steel industry, today's Pittsburgh, Pennsylvania does not look much like a gritty steel manufacturing town of yesteryea
(MUSIC) That July was the hottest month ever in West Virginia. Many workers became tired and weak in the heat. John Henry was concerned his friends might lose their jobs. So, he picked up their hammers and began doing their work. One week, he did his
(MUSIC) Today we tell a traditional American story called a tall tale. A tall tale is a story about a person who is larger than life. The descriptions in the story are exaggerated much greater than in real life. Long ago, the people who settled in un
'Man of Steel' Caps Superman's 70-year Evolution Superman's character rests on his dual nature. He was born as Kal-El on the planet Krypton, which was destroyed right after his parents launched him to Earth. Allusions to the story of Jesus are thread
STEVE INSKEEP, HOST: Tonight's speech gives the president a chance to clarify what he means by America first. Throughout his campaign, he contended the United States was getting the shaft. (SOUNDBITE OF ARCHIVED RECORDING) PRESIDENT DONALD TRUMP: Era
SCOTT SIMON, HOST: Baseball's a game that honors tradition, like B.J. Leiderman, who writes our theme music. At Wrigley Field, which is where I believe the world champion Chicago Cubs play, that 103-year-old ballpark has a new seating and dining area
STEVE INSKEEP, HOST: President Trump's push for tariffs on steel and aluminum imports is driven in part by competition from China. The United States still produces most of its own steel, we should be clear. But the industry has faced pressure from ch
STEVE INSKEEP, HOST: American steelmakers are excited about President Trump's proposal to put 25 percent tariffs on imported steel. They say the tariffs will help level the playing field against competitors in China. But in one Michigan county that v
DAVID GREENE, HOST: We're going to visit a small town in Western Pennsylvania now that's worried about losing steel jobs. Several hundred people work for NLMK in Farrell, Penn. This is a Russian-owned steel mill that uses Russian steel, and so it's b
DAVID GREENE, HOST: China is threatening to impose new tariffs on lobsters from the United States in what could be the latest volley in a growing trade dispute. But, as Craig LeMoult of member station WGBH reports, the American lobster industry is al
By Nathan King New York 03 November 2009 USS New York A U.S. warship built with steel from the ruins of the World Trade Center has arrived in New York. The USS New York stopped alongside Ground Zero to fire a 21-gun salute honoring those who died in
BEIJING, Aug. 19 (Xinhua) -- China's steel output growth slowed in July and prices of steel products have continued to drop, according to data from the National Development and Reform Commission (NDRC). Crude steel production gained 4.2 percent year
Here are 7 health problems from eating too many almonds! 以下是吃太多杏仁会导致的7种健康问题! 1.Kidney Stones 肾结石 Certain diets and foods can make people more prone to kidney stones, especially diets high in oxalates. This is
One of the most high-profile headlines on China's state-run sector this year is a planned merger between Shanghai-based Bao Steel and another steel company based in the central Chinese city of Wuhan. Both companies, owned by the central government, a
Iron ore prices slumped as much as 50 percent in 2014. Importers who are facing risks of further declines, are remaining cautious holding lower inventory levels. Shipping companies and steel producers are also suffering from the dampening market. It'
For One Ohio Town, Trump's Trade Policies Bring Uncertainty And Hope STEVE INSKEEP, HOST: This story takes us to the shores of Lake Erie - to Ashtabula, Ohio, a port city with access to Canada and beyond through the Great Lakes and the St. Lawrence S