...ficate)、生产认证(Production Certificate)、适航认证(Airworthiness Certificate)、运营认证(Operational Certificate)这四个质量认证涉及的标准有很多,构成一整套标准体系,而DO-178B标准则是对机载软件进行适航认证时适用的标准,是整个民航标准体...
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operational certificate
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以上为机器翻译结果,长、整句建议使用 人工翻译 。
Now there is a week's delay for its operational start as it didn't get its new vehicle certificate in time from the Department for Transport (DfT).
BBC: Week-long wait for London's new Routemaster bus
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