Sych瑟奇SYabbr.平方码(=square yard)abbr.主发动机偏转(=sustainer yaw)Syphon Filter - Dark Mirror虹吸战士-黑镜syphilitic spastic paraplegia梅毒性痉挛性截瘫syphili-tic osteochondritis梅毒性骨软骨炎Syringing of nasolacrimal duct鼻泪管注射器冲涤syphilid palmaris et plantaris掌跖梅毒疹syphilitic meningoencephalitis麻痹性痴呆syringocystadenoma papillferum乳头状汗管囊腺瘤systolic pressure-time index收缩压时间指数Syzygium oblate var. affinis白丁香sychondrosis sphenooccipitalis蝶枕软骨结合