signalling appliance meaning in English
信号设备
Examples
- Audible and or visual signaling appliances for fire alert
火灾声和或光警报器 - Measurement of sound pressure level for sound signal appliances by seagoing vessel
海船声号器具的声压级测量 - Visual signaling appliances - private mode emergency and general signaling
可视信号发送装置.专用应急和通用信号发送 - Audible signal appliances
声频信号设备 - Audible signal appliances
声频信号装置