And they may be distinguished from large alarm column by different tonality of horn and rotating light,and make a sound in the small alarm light column and indication panel,for catch persons atention.

• 并还可在大型报警灯柱上用没的喇叭音调和旋转灯予以辨认，在小型灯柱和灯板上可发出音响，以引起船员足够重视.