optical MDF光学手控测向仪opticaladj.视觉的；光学的optical fiber industry光纤工业optical memory element光学存储元件,光存储元件optical active polymer光学活性聚合物optical memory crystal光存储晶体optical mode vibration光学型振动Optical splitter booth交接间optical fiber cladding光纤包层optical trap stiffness光阱刚度optical memory circuit光存储电路optical transmissivity光学透过率