Opticalsn.光学opticaladj.视觉的；光学的optical DQPSK光差分正交相移键控optical plumb光测悬线,光测垂线,光测铅垂线optical field光场Optical films光学薄膜optical clock光钟optical chaos光混沌optical imager光学成像仪optical hybrid光桥接器optical resist光刻胶optical resins光学树脂