从100 %生物可降解材料。
目的：用生物可降解材料明胶制备肺靶向硫酸链霉素明胶微球。
OBJECTIVE the purpose is to optimize the preparation of lung targeting microspheres of streptomycin sulfate using the biodegradable materials-gelatin.
在生物医用高分子材料领域，生物可降解材料越来越引起人们的重视。
In biomedical polymer material field, biodegradable materials increasingly attracted people's attention.
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