笛号 meaning in Chinese
whistle signal
Examples
- For the ship that is being get over , it should show its consent by giving the following siren signals , one long , one short , one long , one short
将被超越之船舶，倘欲表示同意，必须用汽笛发出一长一短一长及一短之笛号，依次序发出。
whistle signal