analar高纯度化学试剂analadj.肛门的；直肠的；肛门附近的analyzing type分析型analcitization方沸石化anal impotence肛门无能anal retractor肛门牵开器anal operculum肛盖anal education农村教育anal appendage肛附器anallog signal模拟信号anal manometry肛门测压法anal membranae[医] 肛膜, 肛板