Discovery's final flight follows several delays due to technical problems and repairs to its external fuel tank, but NASA's mission launch director Mike Leinbach says the shuttle is still space-ready.

美国航空航天管理局的发射主任迈克·莱因巴克说，这次发现号的最后飞行，曾经因为技术问题以及修理外油箱而几度延期，但它仍旧能承担太空飞行任务。

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So does the National Highway Traffic Safety Administration (NHTSA). The agency has received at least 10 similar complaints and wants to hear from other owners who have experienced problems after repairs were done.

VOA: standard.2010.03.04

Of course, car companies have to research problems before they can act, and they have to come up with repairs for thousands and millions of vehicles.

FORBES: 5 New Year's Resolutions For The Auto Companies (And Car Buyers)

The centre has been dogged by problems since opening - six months late - in 2008 and has already been closed several times for repairs.

BBC: Dumfries DG One centre: Court action starts over faults