讀器控制繼電器 rcr reader control relay: 閱讀器控制器繼電器reader control relay: 閱讀器控制繼電器rcr remote computer reader: 遠(yuǎn)程計(jì)算機(jī)閱讀器rcr retina character reader: 視網(wǎng)膜字符閱讀器rcr remote control unit: 遙控裝置下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯