To reduce warranty cost efficiently and to make the cost more suitable for real status, a modeling method for preventive maintenance of warranty products was proposed with failure rate reduction.

为了有效地降低质保成本，使成本模型更切合实际情况，提出了基于失效减缓的质保产品预防性维护建模方法。

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To reduce warranty cost efficiently and to make the cost more suitable for real status, a modeling method for preventive maintenance of warranty products was proposed with failure rate reduction.

为了有效地降低质保成本，使成本模型更切合实际情况，提出了基于失效减缓的质保产品预防性维护建模方法。

youdao