lifebuoy self-activating smoke signal

基本解释

A lifebuoy is provided with self-igniting light and self-activating smoke signal which is available for use by …
该信号能提供自亮灯和自发烟雾信号供白昼和黑夜使用并相等地分布在船舶两舷。
A lifebuoy is provided with self-igniting light self-activating smoke signal which is available for use by day at night to be equally distributed on both sides of the ship.
该信号能提供自亮灯和自发烟雾信号供白昼和黑夜使用并相等地分布在船舶两舷。
A lifebuoy is provided with self-igniting lightself-activating smoke signal which is available for use by dayand at nightto be equally distributed on both sides of the ship.
该信号能提供自亮灯和自发烟雾信号供白昼和黑夜使用并相等地分布在船舶两舷。