滞烧性

fire retardancy的用法和样例：

例句

Expanded perlite's light weight, low density, porosity, fire resistance, and the strength of particles have secured its use in a wide range of products.膨胀珍珠岩的轻质，低密度，多孔性，防火性以及强度保证了应用的广泛性。

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PEOPLE IN AMERICA - December 15, 2002: Margaret Sanger By Doreen Baingana ((THEME) ) VOICE ONE: I’m Shirley Griffith. VOICE TWO: And I’m Sarah Long with the VOA Special English Program, People in

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PEOPLE IN AMERICA - Margaret Mead, 1901-1978: One of the Most Famous Anthropologists in the World STEVE EMBER: Im Steve Ember. SHIRLEY GRIFFITH: And Im Shirley Griffith with PEOPLE IN AMERICA in VOA Special English. Today we tell about one of the mos

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By Paula Wolfson Washington 30 May 2006 President Bush, left, listens as Henry M. Paulson Jr. speaks in the Rose Garden of the White House Tuesday, May 30, 2006 President Bush has named a new treasury secretary, choosing Wall Street executive Henry

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Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

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Margaret Mead Influenced How Social Scientists Understood Native Cultures ANNOUNCER: Margaret Mead Welcome to People in America from VOA Special English. Today, Sarah Long and Rich Kleinfeldt tell about one of the most influential social scientists o

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VOICE ONE: I'm Barbara Klein. VOICE TWO: And I'm Steve Ember with People in America in VOA Special English. Today we tell complete our report about photographer Margaret Bourke-White. She helped create the modern art of photojournalism. (MUSIC) VOIC

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By Sophie Kanter Washington, DC 28 July 2006 watch Bowling for Soup report Bowling for Soup Bowling for Soup is one of the hottest new punk bands on the American music scene. The musicians met while attending Midwestern State University. They have r

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Hey baby how was your day? Mine has been a little too messy I've been stressing like crazy No time to even put on my make-up But I heart it in your voice You're sounding kind of disappointed It's not only you who is feeling alone Cause I miss you too

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Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

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名人认知系列 Who Was

Who Was Harrret Tutman

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名人认知系列 Who Was

Who Was Harrret Tutman Chapter 2

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名人认知系列 Who Was

Who Was Harrret Tutman Chapter 7

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名人认知系列 Who Was

Who Was Harrret Tutman Chapter 6

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名人认知系列 Who Was

Who Was Harrret Tutman Chapter 5

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名人认知系列 Who Was

Who Was Harrret Tutman Chapter 4

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名人认知系列 Who Was

Who Was Harrret Tutman Chapter 3

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名人认知系列 Who Was

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activated-charcoal column

curtain-falling and inward vision