词汇	貞穆
释义	貞穆 zhēn mù淳正嚴肅。
随便看	optical pointing system optical point of Litigation-Responding fees optical polariser optical polarization optical polarization division multiplexing optical polarization modulation optical polaron optical polish optical polishing optical pollution optical polymer optical position optical position assemble optical position encoder optical positioning system optical position measurement optical positive crystal optical potential optical potential method optical potential model optical-powder or grin abrasive optical power optical/power composite cable optical power density optical power distribution