1、 The best carbon source is maltose.The best nitrogen source is asparagine.
最佳碳源为麦芽糖，最佳氮源为天门冬素；
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2、 The USES of biodegradable polymers poly-asparagine and its derivatives, as carriers in controlled drug release are reviewed.
综述了可生物降解的高分子材料聚天各酰胺及其衍生物作为载体在药物控制释放中的应用。
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