A machine of faulty design will not sell well.

设计不良的机器销路不会好。

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A machine of faulty design will not sell well.

设计不良的机器销路不好。

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We should find out what has caused the defect: Is it caused by faulty design or substandard material supplied, or has something gone wrong in production or in the course of transportation?

我们应该找出造成不合格产品的原因：是由于设计缺陷还是原材料不合格，还是在生产或运输过程中出了问题？

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But the immediate cause of the flooding was the failure of floodwalls and levees that were guaranteed to withstand a Katrina-sized storm surge, but failed thanks to faulty design and construction by the Army Corps of Engineers.

FORBES: The Blurring Line Between Natural and Manmade Disasters

Clearly, if intelligent design was responsible for the modern golfer, this faulty swing would have been corrected over time.

NPR: The Golf World's Biggest Controversy

Keith Hayward, head of research at the Royal Aeronautical Society, said that if the issue is no longer about replacing a faulty battery, it raised the prospect of Boeing having to do a major re-design.

BBC: Dreamliner: No fault found with Boeing 787 battery