That means you need your vector field to be continuous and differentiable everywhere on the surface s.
也就是，向量场是连续的，且在曲面s上处处可微。
The continuous rotating magnet field is transformed into discrete step field in the torque vector control and the electromagnet torque is controlled by means of regulating the stator current.
在矩角控制过程中将连续的旋转磁场离散为步进磁场，通过控制电机定子电流实现对电磁转矩的控制。
Based on the conservative condition of vector lines of variable field in the continuous medium, the problems of electromagnetic field in the moving system are discussed in this paper.
本文由连续介质中的可变场的矢量线的保持性条件，主要讨论了运动系统中电磁场的保持性问题。
Based on the conservative condition of vector lines of variable field in the continuous medium, the problems of electromagnetic field in the moving system are discussed in this paper.
本文由连续介质中的可变场的矢量线的保持性条件，主要讨论了运动系统中电磁场的保持性问题。
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