In vitro release test showed a burst release of DGR from microspheres, followed by sustained release of 50% total activity over 15 days.是什么意思_In vitro release test showed a burst release of DGR from microspheres, followed by sustained release of 50% total activity over 15 days.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句