“bulletproof armor”的概念、定义、翻译、参考文献-科学参考

单词	bulletproof armor
释义	bulletproof armor [`bu̇l·ǝt´prüf `är·mǝr] ^ORDNANCE Light, homogeneous, hard armor plate, having a Brinell hardness of 400 to 475, resistant to small-caliber armor-piercing bullets.
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