他的继母发出无线电求救信号，他飞跑着去拿救生衣。
He raced to pick up the life jackets while his stepmother sent out a Mayday call.
飞机有最好的无线电设备，最可靠的仪器。每架飞机都有救生筏。每个人都有一套救生衣。飞行员非常有经验。
The planes have the best radios and the most reliable instruments. Each plane has life rafts. Each man has a life jacket. The pilots are very experienced.
船舶应装备救生衣、充足防火设备等所有救生装置，以及移动电话、无线电、步话机等通讯设施。
It shall be equipped with all life saving devices like life jackets adequate fire protection arrangements and shall posses communication facilities like cellular phones wireless walkie-talkie.
船舶应装备救生衣、充足防火设备等所有救生装置，以及移动电话、无线电、步话机等通讯设施。
It shall be equipped with all life saving devices like life jackets adequate fire protection arrangements and shall posses communication facilities like cellular phones wireless walkie-talkie.
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