The whole nation that this company will begin to pass Sonance company sells a net to sell HDTV videocorder.

该公将开始通过Sonance公国销网出HDTV录像机。

Alarm indication signal (AIS) should be progressive response, light first and then sonance follows, the time interval should be 15 secs.

告警逐级相，先光后声，时间间隔为15秒。