China will use domestically-made “black boxes” flight data recorders in its airplanes.

中国飞机将采用国产飞行资料记录仪 “黑匣子”。

《新英汉大辞典》

But the priority for the investigators is still to find the plane's flight data recorders.

但是调查人员的首要工作仍然是寻找飞机上的黑匣子。

youdao

But without clear-cut data from the plane's cockpit-voice or flight-data recorders, it may be hard for investigators to conclusively back up pilot assertions or precisely determine what happened.

但在没有来自舱音或飞行数据记录器的明确资料的情况下，调查人员或许很难鲜明地支持飞行员的说法，或者是准确界定当时发生的情况。达美航空和全国运输安全委员会的发言人都拒绝置评。

youdao

But without clear-cut data from the plane's cockpit-voice or flight-data recorders, it may be hard for investigators to conclusively back up pilot assertions or precisely determine what happened.

但在没有来自舱音或飞行数据记录器的明确资料的情况下，调查人员或许很难鲜明地支持飞行员的说法，或者是准确界定当时发生的情况。达美航空和全国运输安全委员会的发言人都拒绝置评。

youdao