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Terms for subject Radio (869 entries)

direct-coupling	直接耦合
direction bearing	有向定位
direction filter equipment	方向滤波器
direction-finding station	测向台站
directivity index	指向性系数
displace phase center antenna	移相中心天线
display primaries	显像三基色
display primaries	接收机基色
distance finding station	测距台
distance-measuring equipment	测距设备装置
distance-measuring equipment beacon	测距器信标
distance-measuring equipment transponder	测距设备应答机
distributed area jamming system	分区干扰系统
distributed-emission magnetron amplifier	分布发射磁控管放大器
dolly in	前进追踪摄影
doorknob tube	门钮形电子管
Doppler	多普勒系统
Doppler phase lock	多普勒相位同步
double base diode	双基极二极管
double diode-pentode	双二极-五极管