交直流两用
alternating-current/direct-current
交直流
ac/dc
交直流电
alternating current/direct-current
交直流电铃
ac-dc ringing
交直流接收器
a-c d-c receiver
监控接收机
check receiver
交流接收机
a-c receiver
接收机
receiver; receiving machine
receiver
接收机带宽
receiver brandwidth
接收机的调谐
receiver tuning
接收机的校准
receiver alignment
接收机封锁系统
receiver lockout system
接收机辐射
receiver radiation
接收机灵敏度
receiver sensitivity
接收机选通
receiver gating
接收机杂讯临界
receiver noise threshold
接收机杂音数
receiver noise figure
接收机增量调谐
receiver incremental tuning
接收机组
receiving set
记帐加数两用机
listing-adding machine