This problem was exacerbated by gas pressure from the rocket's spin motor and main motor where their force vectors were in opposition.

这一个问题被来自火箭旋转稳定发动机和主发动机的气体加剧，在那里他们的力量矢量对抗。

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This paper introduces the basic structure, operation principle, main performances, economical problem and USES of Nd-Fe-B single - phase synchronous motor in the future.

简要介绍了钕铁硼单相同步电动机的基本结构、运行原理、性能特点、应用前景及社会、经济效益分析。

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Then position detection technology, hardware and software system design is discussed. The initial position of the motor is a main problem for control of PMLSM.

然后针对永磁直线同步电机控制系统的主要难点，分为位置检测技术，硬件系统设计和软件系统设计三个方面对控制系统进行分析。

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