a micro controlling unit 微处理器单元
In this design, ARM is the action-controlling unit, high-speed micro-controller is the human-computer interaction unit.
该设计采用ARM处理器作为运动控制单元，高速单片机作为人机交互控制单元。
The secondary-instrument is actually a micro-controller system, which consists of a single-chip micro-controller cored measure-controlling unit, display unit, printing unit and alarming unit.
二次仪表包括以单片机为核心的测量控制单元、显示单元、打印单元和超阈值报警单元等部分。
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