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以人工合成高分子化合物(又称树脂)为主要成分,添加各种不同功能的辅助材料(又称助剂、添加剂)后经混炼而成的一种高分子聚合物。
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plastic
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在制造或加工的某个阶段能流动成型,或原位聚合或固化成型的高分子材料。
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