第三层是支撑技术层，主要包括面向逆向物流的产品设计、产品跟踪管理、再制造生产计划和调度。

The third level is supporting technology level, involving product design facing reverse logistics, product track management, production plan and schedule of remanufacturing.

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此外，带再制造的生产计划制定方面的理论研究比较匮乏。

In addition, we lack the theoretical research on making production plan with remanufacturing.

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由于存在诸多不确定性因素，使得传统的生产计划与控制方法不能满足再制造生产过程的要求。

There exists many uncertain factors in the remanufacturing process, so the traditional methods of production planning and control are not appropriate for the remanufacturing process.

youdao

由于存在诸多不确定性因素，使得传统的生产计划与控制方法不能满足再制造生产过程的要求。

There exists many uncertain factors in the remanufacturing process, so the traditional methods of production planning and control are not appropriate for the remanufacturing process.

youdao