The three-dimensional frame of reference is the realm of definitions, and that is why it is apparently constituted of time and space.
三度空间的思想架构是一个靠定义而存在的世界，因此，它需要时间和空间。
Meanwhile, as a cultural space, Folk not only build up a new object for cultural animadversion but also provide another frame of reference when intellectuals pursue value.
“民间”这一博大庞杂的文化空间的引进，为知识分子的反思和社会批判确立了又一个客体，更也为知识分子的价值追寻提供了另一种参照。
Space vector is a very important conception in electrical machine analysis. This paper discusses the reference frame conversion used in high performance motor control based on space vector.
介绍了空间矢量这一在电机分析中重要概念，在此基础上讨论了高性能电机控制中所需的各种坐标变换。
The state space model of the DVR with the FESS is established, the double vector control algorithm in dq synchronous reference frame is designed.
建立了基于FESS的DVR变换的数学模型，设计了同步旋转坐标系下的双矢量控制器。
The state space model of the DVR with the FESS is established, the double vector control algorithm in dq synchronous reference frame is designed.
建立了基于FESS的DVR变换的数学模型，设计了同步旋转坐标系下的双矢量控制器。
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