pela

pela

美 　英

• 网络波特兰英语学院(Portland English Language Academy)；聚乳酸；数字手表

例句

Preparation and characteristics of PELA-microspheres for vaccine sustained release

聚乳酸-聚乙二醇共聚物为载体的缓释疫苗微球的制备及特性研究

Study on Improvement of Release Behavior of Protein Drugs from PELA Microspheres

改善蛋白质药物PELA控释微球释放性能的研究