European air-safety officials' initial investigations suggested an oil leak, leading to a fire, may have caused the failure.

欧洲航空安全官员的一份原始调查报告显示，事故罪魁祸首可能是漏油及随后的起火。

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His failure to observe the safety regulations resulted in an accident to the machinery.

因为他没有遵守安全规则，机器出了故障。

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Considering the critical components like reactor coolant lines and oil-well casings, the metal parts are subjected to prior replacement, for safety, with respect to a worst-case analysis of failure.

考虑到关键部件如反应堆冷却剂线和油井涂层不能出现问题，为了安全，并对失效做了最坏的分析，这类金属零件会得到优先更换。

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He said at the trial the company's failure to abide by safety rules was "one of the worst examples of sustained industrial negligence in a high risk industry I have ever seen".

BBC: NEWS | UK | Hatfield crash fine 'excessive'

To hear Graham tell it, this is part of a systemic failure to address drug safety on the part of the FDA, a story that reaches back over the entirety of his 20-year career at the agency.

FORBES: Face Of The Year: David Graham

And yet even Mr Lansley's critics agree that, as the former Independent MP for Wyre Forest Dr Richard Taylor puts it, "the NHS needs to change" - though he's urging "evolution not revolution" and is especially concerned by what he sees as Mr Lansley's failure to put patient safety at the heart of his recommendations.

BBC: Health reform: A suitable case for treatment?