This paper introduces the basic operating principle of 3r Datum System, and describes its working process with an example of production.
本文介绍了3R基准系统的基本工作原理，并通过生产实例描述了它的工作过程。
This paper introduces the basic operating principle of 3r Datum System, and describes its working process with an example of production.
本文介绍了3R基准系统的基本工作原理，并通过生产实例描述了它的工作过程。
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