keying 键控...absorber keying 吸收发报法...keying material 密钥卡片...keying device 键控设备...vacuum keying 真空按键...quarternary phase-shift keying 四相相位键移...keying click 按键滴答声...amplitude shift keying 振幅键控...back-shunt keying 反向分流按键...keying filter 电键滤波器...nodal-point keying 节点按键法...vacuum-tube keying 电子管键控发报...block-grid keying 断栅极按键...keying signal 键控信号...keying modulation circuit 键控调制电路...two-source frequency keying 二源频率按键...nodal point keying 节点键控...keying loss 键控失真...keying interference 电键干扰...maximum keying frequency 最大按键频率...keying chirp 电键啁啾声...
交流互动
发表言论