词语annunciator relay
解释信号继电器
annunciator relay〔名词〕信号器继电器,信号装置继电器详细»
annunciator relay〔名词〕信号继电器,指示继电器详细»
annunciator relay信号继电器详细»
信号继电器signal relay详细»
信号继电器〔名词〕annunciator relay详细»