这位兄台是清华毕业的？
想想学堂前日晷上刻的字，谨言慎行。

另外引用一篇文献中的话，希望对你有所帮助：

"There is a strong synergism between biodegradation and environmental factors,
and biodegradation can, in practice, never be entirely separated from the purely physical and chemical--mainly autooxidative--progressive ageing, always
presents as an unavoidable slow but cumulative background effect. Biodegradation is seldom due to a single cause, but a combined effect including heat, UV light, stress and water. The presence of water is a necessity for biodegradation."


文章作者 A.C. Albertsson，在塑料，高分子（生物）降解领域发表了许多文章，选的这篇是 1976 年，大约 35 年前，发表在 Polymer Degradation and Stability 上，引用次数很高的一篇文章。。。

【 在 okbridge (方鸿渐) 的大作中提到: 】
: 你们没有理科，你也不象土著，土著至少能讨论问题
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FROM 76.114.110.*