Semiani塞米亚尼semin.半挂车；半挂车货车；<非>半决赛pref.表示“一半的；部分的；不完全的”semiregular graphs半正则图semi-logarithmicadj.半对数的semipersistent gas半持久性毒气semi-lethal gene半致死基因semireal semirings半实半环semixylenol orange半二甲酚橙semi-simple ring半单纯不semi-closed seas半闭海semi-transparentadj.半透明的semi-rigid rotor半刚接式旋翼, 半刚性旋翼