perceptionn.观念；洞察力；认识能力perception medium感觉媒体Perception system感知系统perception beauty感知美perception of CAI电脑辅助教学观念perception factor认知因子perception theory言语感知论Perception of War战争认知perception filter感知过滤perception reflex[医] 知觉反射, 识别反射perception ability感知觉能力