ACTMn.交轴频程计actn.行为；行动；法案；(戏剧、歌剧等的)一幕；假装v.行动；举止；假装；表演；扮演；充当；有效果activation energy活化能activation domain活化域act of the seller卖方的行为activation method活化法,激活法act on principles照原则办事activation control活化控制actuator/sensor传感器/执行器activating reagent活化试剂actuating of relay继电器动作act on a complaint根据不满的意见采取行动