direct melt polymerization
direct melt polymerization
直接熔体聚合
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The results show that high-molecular weight PLA can be prepared by the direct melt condensation polymerization at suitable technological condition and the product has good biodegradability.
结果表明：采用适当的工艺能通过熔融缩聚法制备出高分子质量的聚乳酸，且具有良好的生物降解性能。
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