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What is kevlar, and why is it so strong? - Max G. Levy
5:16
What is kevlar, and why is it so strong? - Max G. Levy
已浏览 34.8万 次2024年8月15日
YouTubeTED-Ed
Kevlar: The Tougher-Than-Steel Fabric Used in Bulletproof Vests
8:06
Kevlar: The Tougher-Than-Steel Fabric Used in Bulletproof Vests
已浏览 4.3万 次4 个月之前
YouTubeHistory of Simple Things
The life and achievements of chemist Stephanie Kwolek, inventor of Kevlar
5:47
The life and achievements of chemist Stephanie Kwolek, invent…
已浏览 4.3万 次2024年3月17日
YouTubePBS NewsHour
Kevlar: The Material That Saves Lives
3:14
Kevlar: The Material That Saves Lives
已浏览 2171 次11 个月之前
YouTubeIDiyas Inventor Videos
What Is Kevlar? - Chemistry For Everyone
3:01
What Is Kevlar? - Chemistry For Everyone
已浏览 370 次11 个月之前
YouTubeChemistry For Everyone
The life and achievements of chemist Stephanie Kwolek, inventor of Kevlar
5:46
The life and achievements of chemist Stephanie Kwolek, invent…
2024年3月17日
PBSAli Rogin,Claire Mufson,Lana Green
How Kevlar Stops Bullets
1:57
How Kevlar Stops Bullets
2 个月之前
MSN
观看更多视频
静态缩略图占位符
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短视频

5:16
What is kevlar, and why is it so strong? - Max G. Levy
已浏览 34.8万 次2024年8月15日
YouTubeTED-Ed
8:06
Kevlar: The Tougher-Than-Steel Fabric Used in Bullet…
已浏览 4.3万 次4 个月之前
YouTubeHistory of Simple Things
5:47
The life and achievements of chemist Stephanie Kwolek…
已浏览 4.3万 次2024年3月17日
YouTubePBS NewsHour
3:14
Kevlar: The Material That Saves Lives
已浏览 2171 次11 个月之前
YouTubeIDiyas Inventor Videos
5:46
The life and achievements of chemist Stephanie Kwolek…
2024年3月17日
PBSAli Rogin,Claire Mufson,Lana Green
3:01
What Is Kevlar? - Chemistry For Everyone
已浏览 370 次11 个月之前
YouTubeChemistry For Everyone
1:57
How Kevlar Stops Bullets
2 个月之前
MSN
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静态缩略图占位符
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