basals基板basaladj.基础的；基本的basal narcosis基础麻醉basalioma cell基底细胞瘤细胞basal coverage基盖度basal granules[医] 基底粒, 生毛体, 毛基体basal drainage[医] 脑底引流法basalar muscle基底肌basal ganglion基底神经节basal fracture[医] 颅底骨折Basal meninges基底部脑膜Basal eudicots真双子叶基部类群