automatic iris自动可变光阑automaticadj.自动的；无意识的；必然的n.自动装置；半自动武器automatic announcement自动通告automatic player piano自动钢琴automatic cable pulley滑行上山的拉索的自动滑轮automatic deactivation自动撤消, 自动释放automatic packing line自动包装线automatic line spacing自动行间隔automatically decouple自然解耦automatic head parking自动磁头归位automatic cain control自动增益控制automatic turret lathe自动转塔式六角车床