It's not that Americans are unfamiliar with recalls. In 2008, Ford recalled some 14 million vehicles for faulty cruise-control switches that, on occasion, caught fire.
美国人对召回并不陌生，在2008年福特曾因巡航控制开关偶然起火，而召回1.4亿辆汽车。
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We are sure this was just due to carelessness in quality control, and that you will send another shipment of shirts promptly to replace this faulty one.
我们相信这是由于质量控制不慎导致的问题，并希望你们尽快给我们再次发货以替代这次的残次品。
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This article analyzes the status change in the attitude control system when faults appear based on one polar orbit satellite, and provides a method to decide faulty component.