词汇	long-life tube
释义	long-life tube 长寿命管
随便看	optical-links optical links and equipment optical link segment optical link supervision optical liquid optical liquid prism optical lithographic resolution optical lithography optical lithography mask optical lithogrpahy optical lobe optical local exchange carrier optical localization optical local oscillator optical light optical light filte optical light filter optical lighting system optical light microscope optical light output ratio optical light output ratioof a luminaire Optical limiter optical limiting Optical limiting composites optical limiting effect