Execute process of product development including design, analysis, material selection, evaluation and qualification to meet standards.

执行产品开发过程，包括：设计、分析、材料选择、评估以及符合标准的资格。

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There are a lot of quality problems in the process of corn thresher production which caused the product qualification rate dropped.

玉米脱粒机生产厂家在生产过程中存在着许多问题，导致产品的合格率下降，甚至有许多假冒伪劣产品。

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The wider the range within which a parameter could be varied during process qualification without impacting product quality, the more robust it is.

在参数确认中不影响产品质量的可改变的参数的范围越宽，工艺越稳定。

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