1)master spare positioning resolver,主备用定位分解器2)MSPR (master spare positioning resolver),主备用定位分解器3)HOST,主备4)switch between master and slave,主、备切换5)Main System and Spare System,主备系统6)main and backup INS,主、备惯导7)main/standby circuit,主备线路8)main power source,主备电源9)primary and secondary workstation,主备机10)active/standby,主备用
用法例句
Design for active/standby mode on timing board without processor;