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两种黑匣子都配备了水下定位信标，当它们和水接触以后会自动启动。
Both black box components are outfitted with underwater locator beacons, which self-activated the moment they come into contact with water.
与呆在救生艇上的人不同的是，我们有一个紧急定位信标，所以海岸警卫队能发现我们。
Unlike the guys in the raft, we had an emergency locator beacon so the Coast Guard could find us.
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。
Check cabin emergency speakers for presence and condition. Check emergency locator transmitter for general condition, security.
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