optical artn.光效应绘画艺术；欧普艺术opticaladj.视觉的；光学的optical angle gauge光学测角仪optical pulse delay光脉冲延迟optical memory card光存储卡optical compensator光学补偿器optical coefficient光学系数optical time domain光学时域optical double star光学双星optical urethrotome照明尿道刀optical code reader光学代码阅读器optical calculation光学计算