- 1. 音响信号器: sound signaling device
... 音响信号定向能力 orientability of a sound signal 音响信号器 sound signaling device 掉闸音响信号 tripping audible signal ...
dict.youdao.com - 2. 音响信号器具: sound signal appliance
dict.youdao.com - 3. 音响信号器具: sound signal instrument
dict.youdao.com - 4. 组合式音响器及信号灯: Combined Sounders & Beacons
dict.youdao.com - 5. 高级音响信号处理器: advanced acoustic signal processor
dict.youdao.com - 6. 电子音响信号应答器: electronic aural responder
dict.youdao.com
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