High molecular weight PLA can be prepared by ring-opening polymerization of lactides.
高
的聚丙交酯主要由丙交酯开环聚合制
。
High molecular weight PLA can be prepared by ring-opening polymerization of lactides.
高的聚丙交酯主要由丙交酯开环聚合制。
Lactide is the midbody for the preparation of poly(lactic acid), the ratio of lactic acid to lactide is low and hamper the extensive application of PLA.
丙交酯是由乳酸制聚乳酸的中间体,其产率偏低是制约聚乳酸大规模应用的关
。
：以上例句、词性
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