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大家在查：第2-4 芸芸众生之中 public eye 乌香睡衣闲荡特地乘 Methylacrylic Acid CesarChavez accelerating germination bar tacking

成聚

成聚

成聚

1

Lactide , which was synthesized through lactic acid condensation, was polymerized to form PLA by ring-opened of lactide.

聚乳酸的制备多采用乳酸脱水生成丙交酯，然后开环聚合成聚乳酸。

2

The flower is bisexual , small and orderly , sheet is born or the platoon becomes cyme, often be born in truncal go up or on thick branch ;

花两性，小而整洁，单生或排成聚伞花序，常生在树干上或粗枝上；

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