生物降解造句

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1.
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卤代有机物由于有卤代基团的存在而具有很强的毒性和抗降解能力，其生物降解的关键步骤为脱卤反应，是还原反应。

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2.
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研究者采用了一种叫PLGa的生物降解聚合物来制造镜片，首先将其溶解在有机溶剂里，然后加入药物。