Boeing and Airbus over recent years built up record order backlogs equivalent to roughly eight years' worth of production at recent levels.

波音和空客近年来都积累了创纪录的订单储备，按近来的生产水平，积累的订单大约相当于两家公司8年的产量。

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Both plane makers are cushioned by order backlogs of around 3,500 planes.

VOA: standard.2009.06.16

Its current order backlogs stand at record levels and higher commodity prices are playing right into its plans to grow its mining business.

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Thus a plan began to coalesce for buying those properties and running them as efficiently as possible, mining their substantial order backlogs for superior returns.

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Even tiny delays, like the extra time pilots spend trying to find the right taxiway in the fog at O'Hare in Chicago, can add up to huge backlogs as far away as New York as controllers order delays in takeoffs.

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