Opticalsn.光学opticaladj.视觉的；光学的optical fibern.【通信】光纤，光导纤维optical means光学方法optical scale光学秤,光显示秤optical cross光学十字形表optical light可见光optical cycle光学周期optical speed光速率optical motor光电机optical gauge光学测量仪器optical force矫形力