联众涂料论坛
标题:
高聚物的化学变化
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作者:
hf101010
时间:
2008-5-27 17:35
标题:
高聚物的化学变化
高聚物的化学变化
作者:
fredfeng
时间:
2008-5-30 00:22
标题:
chemical reaction
it's real useful to understand chemical reaction and degradation
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