声号 meaning in English
sound signal
Examples
- 3 short siren signals : vessel is going backwards
短声号三响：表示本船正在开倒车 - 2 short siren signals : vessel is turning left
短声号两响：表示本船正把航向转左 - 1 short siren signal : vessel is turning right
短声号一响：表示本船正把航向转右 - 2 long , 1 short : vessel will get over on the right
两响长声后跟著一响短声号：表示我意欲在你右边越过 - Measurement of sound pressure level for sound signal appliances by seagoing vessel
海船声号器具的声压级测量