其提供1微米的重复精确度，这些精确的接触开关专门设计用来设定参考点，检查公差，监测，计量和校准工作。
Offering 1 micron repeat accuracy, these precision contact switches are designed for setting reference points, checking tolerances, monitoring, gauging and calibrating tasks.
对关口电能计量装置的全过程技术监督管理和关口电能计量装置的现场校准工作进行了探讨。
In this paper there is a research on whole technical supervision and local calibration for the electric energy measurement equipment in the grids.
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