The paper adopts quality research method, and appears and analyzes the materials by story narration.

研究方法采取质性研究，以故事叙说作为资料呈现与分析的方式。

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The method can provide a reference for the material base research and quality control of the decoction of Rhizoma Polygonati.

该方法可为黄精物质基础研究与质量控制提供参考。

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So it is very important to improve product quality that makes research on measuring method dynamic balancing of motorcycle crank module and the development of system.

因此，研究摩托车曲轴组件动平衡检测方法和动平衡系统的开发对提高产品质量具有重要的意义。

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