... Datum Place 基准面 Day Light Signal 日光式号志；灯光式号志 Day Work System 日工制；点工制 ...
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Signal day light 灯光式号志
Day y Light Signal 灯光式号志 ; 日光式号志
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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。
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