单词	瓷硼钙石
释义	瓷硼钙石bakerite
随便看	optical libraries optical library optical libration optical light filter optical light output ratio optical light output ratio (of a luminaire) optical light output ratio [of a luminaire] optical limiter optical limiting optical limiting amplifier optical line amplification optical linear repeater optical line follower optical linescan optical linewidth optical link optical link pilot protection system optical links optical links and equipment optical lithography optical load sensor optical local area network optical local exchange carrier optical loft optical log