self-activating smoke signal

常见例句

A lifebuoy is provided with self-igniting light and self-activating smoke signal which is available for use by …
該信號能提供自亮燈和自發菸霧信號供白晝和黑夜使用竝相等地分佈在船舶兩舷。
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.
該信號能提供自亮燈和自發菸霧信號供白晝和黑夜使用竝相等地分佈在船舶兩舷。
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.
該信號能提供自亮燈和自發菸霧信號供白晝和黑夜使用竝相等地分佈在船舶兩舷。