digital l multipurpose meter 数字多用表
photoelectric multipurpose water-level meter 光电式多功能水位计
multipurpose frequency meter 通用频率计
The method to verify DC resistance box automatically using digital multipurpose meter is introduce as well as the software and program, and the error analysis is done.
简要介绍了直流电阻箱半自动检定系统的构成、工作原理、测量方法及软件设计，并对该系统的可行性进行了验证。
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