sound signalling meaning in English
声响通信
声响信号装置
Examples
- Sound signalling devices for household and similar purposes
家用和类似用途的声音信号装置 - Standard specification for bell , cast , sound signalling
铸制声音信号铃 - Determination of range of audibility of sound signal
信号听距测定 - Heart sound signal gathering and analyzing
心音信号采集与分析系统 - Specification for bell , cast , sound signaling
铸制声音信号铃规范