Besides, a DC controllable electromagnet is developed as actuating mechanism with many feafures such as simple structure, long service life and easy productive technique.
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美
- 另外调速器采用直流可控电磁铁作为电动执行机构,具有结构简单、使用寿命长和制造容易等特点,是该调速器具有技术特色之处。