The system hardware is composed of upper and lower computer.
系统硬件由上位机和下位机两部分组成。
And software system of upper and lower computer was introduced.
并介绍了其上、下位机的软件系统。
The advanced upper and lower computer hardware framework is adopted to achieve the high accuracy and multi-function power quality detecting and analytical functions.
电能质量监测仪采用先进的上、下位机硬件架构来实现高精度、多功能的电能质量监测和分析功能。
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