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Copper wire upgrade caused nationwide flight suspension, US transport secretary says

来源: feeds.bbci.co.uk · 发布于

Copper wire upgrade caused nationwide flight suspension, US transport secretary says
来源: feeds.bbci.co.uk

The US government is trying to find out whether the chaos was caused by "incompetence" or faulty equipment.

The US government is trying to find out whether the chaos was caused by "incompetence" or faulty equipment.

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