Analog fixed speed and digital variable speed.
模拟固定速度和数字式可变速。
Based on vector control theory, a fully digital variable speed system is designed.
基于矢量控制理论设计了一套全数字变频调速系统。
Based on vector control theory, a full digital variable speed system is designed. The system structure and method for designing the software and hardware are introduced.
基于矢量控制理论设计了一套全数字变频调速系统，介绍了系统结构及软硬件设计方案。
Based on vector control theory, a full digital variable speed system is designed. The system structure and method for designing the software and hardware are introduced.
基于矢量控制理论设计了一套全数字变频调速系统，介绍了系统结构及软硬件设计方案。
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