For supply chain that mainly depend on core enterprises, this paper presents a three-layer production planning control model, and the algorithm with examples for the production planning.

针对以核心企业为主的供应链，提出了三层生产计划控制模型并给出了其节点企业内部生产计划的具体算法与运行实例。

youdao

You see, adult female birds during egg production produce a layer of spongy bone tissue inside certain long bones.

你看，成年雌鸟在产蛋的过程中会在某些长骨内产生一层海绵状的骨组织。

youdao

Response holds the final response of the merged production workflow after execution of all tasks in the task layer.

response用于在执行任务层的所有任务之后，保存合并生产工作流程的最终响应。

youdao

The Montreal Protocol is the international agreement designed to protect the ozone layer by phasing out production of Cfc's and halons.

BBC: News | Sci/Tech | Ozone hole reaches record size

But if doctors can preserve remaining insulin production in their new patients, they might someday be able to layer on other drugs that would prod the insulin-producing cells to slowly regenerate.

FORBES: Magazine Article