BA是Bioavailability的缩写，表示临床试验中的生物利用度。
双语例句
1、It has superior bioavailability and transports well across the blood brain barrier and into cells.
它具有优越的生物利用度和运输跨越血脑屏障进入细胞。
2、The results showed that the relative bioavailability in the pellet group was 172% in comparison with that in the conventional tablet group.
结果表明与常规片剂相比．硝苯地平微丸胶囊的相对生物利用度为172％。
