JEI自1967年以来一直致力于为公众安全和军事情报提供通讯录音系统，语音记录器以及定制音频设备。

JEI has been providing Communications Recording Systems, Voice Logging Recorders, and custom Audio equipment for public safety and military intelligence applications since 1967.

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官方称，飞机语音记录器仅储存航班最近两个小时的飞行记录，但马来西亚航空公司失联航班上的关键事件可能在此之前就已经发生。

The flight voice recorder only stores the most recent two hours of flight, but the key events in the Malaysia Airlines flight may have taken place earlier, officials have said.

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赫尔维说，NTSB调查人员还没有检查机舱语音录音和飞行数据记录器，这些已经被送到该委员会在华盛顿的实验室去做分析。

Mr Holloway said NTSB investigators had not yet examined the cockpit voice recorder and flight data recorder, which were being sent to the board's lab in Washington for analysis.

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