optical CAD计算机光学设计opticaladj.视觉的；光学的optical information storage光学信息储存,光学信息存储,光信息存储器optical mixing spectroscopy光混频分光学optical thickness moninitor光学厚度监控器optical spectrum instrument光谱仪器optical computed tomography光学层析技术optical current transformer光学电流互感器optical fibre communication光纤通信optical communication fibre光通信纤维optical fibre demultiplexer光纤解多路复用器optical heterodyne receiver光外差接收机