单词	秋听
释义	秋听 qiū tīng猶秋聲。
随便看	optical baffle optical balance optical band optical bandgap optical band gap optical band-gap optical band-gap energy optical bandpass filter optical bandwidth optical bar code reader optical bar-code reader optical bar code scanner optical bar-code scanner Optical bar code serial printer optical barmonic generation optical bar reader optical barrel Optical Barrel Camera Optical base image optical base-line measuring apparatus optical basicity optical beacon optical beam optical beam addressable storage optical beam deflection