将一种由改性高分子材料制成的人工水草作藻菌生物膜的载体，来改善富营养化水体水质。
The quality of eutrophic waters was improved by the algae-bacterium biofilm, which covered over the artificial aquatic mat made from a kind of mend macromolecule material.
天然高分子材料经过改性可加工成为人类急需的可生物降解的人工高分子材料。
Natural high polymer materials can be modified into artificial ones capable of biological degradation to meet the urgent need of mankind.
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