Total lead time for an end item, calculated by taking the individual lead times for all items on the critical path through all levels of the bill of material.

最终产品的总共前置时间，以物料清单各层要径所有产品前置时间计算得出。

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A total of 148 (15%) patients experienced a lead defect, and the median time to lead failure was 1704 days (4.7 years).

共有148名患者(15%)经历过导线故障，导线故障发生的中位时间是1704天(4.7年)。

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The lead - time and throughput of a total production system are influenced by the setting and size of buffers.

缓冲的设置和大小影响到整个生产系统的生产提前期和有效产出。

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