短語詞組短語signalling g device 信號裝置automatic signalling device 自動(dòng)信號裝置;翻譯audible signalling device 音頻信號器detection signalling device 檢查訊號裝置light rain signalling device 燈光信號裝置light signalling device 燈光信號裝置electronic signalling device 電子信號裝置fire alarm signalling device 火災(zāi)脅報(bào)裝置;火災(zāi)警報(bào)裝置sound signalling device 聲響訊號裝置;聲響信號器 返回 signalling device