Check cabin emergency speakers for presence and condition. Check emergency locator transmitter for general condition, security.
检查客舱应急话筒是否在位且状态良好。检查应急定位信标发射机状态是否正常，固定是否牢靠。
Objective To develop a more reliable blinking emergency location transmitter with longer time for aircrew in distress.
目的：研制一种发光时间更长、更可靠的遇险飞行人员用闪光标位器。
The system is powered by a 12-volt receiver and a 12-volt transmitter that can be recharged from the mains or an emergency vehicle.
该系统的能源由一台12伏的接收机和一台12伏的发射机提供，它们可从公用电源或救急车中充电。
The system is powered by a 12-volt receiver and a 12-volt transmitter that can be recharged from the mains or an emergency vehicle.
该系统的能源由一台12伏的接收机和一台12伏的发射机提供，它们可从公用电源或救急车中充电。
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