大风和下降气流使得飞行高度比计划低，这样耗电也更快。

Headwinds and downdrafts meant flying at a lower altitude than planned, which used up power too quickly.

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飞行员通过一个高度严格的系统通知管制员他们计划飞往何处。

Pilots inform controllers via a highly structured system where they plan to fly.

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飞：可以放行至北京首都国际机场，按计划航路飞行，使用跑道27右，多佛5F离场，修正海压1007，起始高度修正海压上7，000英尺，应答机3037，离场频率119.72 ， 英航39。

PF: Clearedto Beijing Capital Airport, flight planned route, using runway 27 right, DOVER 5Foxtrot departure, QNH1007, initial climb to 7,000 feet, squawk 3037, Departureon 119.72, SPEEDBIRD 39.

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