This paper mainly discusses a PWM control system for switched resistant motor (SRM) driving system and the base structure and working principle of SRM are introduced.
介绍了三相开关磁阻电动机脉宽调制（PWM）控制系统及开关磁阻电动机（SRM）的基本结构与工作原理。
The motor insulation class determined by the heat-resistant insulating material used in class.
电机的绝缘等级决定于所采用的绝缘材料的耐热等级。
The foundry technology for resistant pressure base seat of submarine motor were discussed from some respects of chemical constitution, analysis of casting structure, modeling materials etc.
从化学成分、铸件结构、造型材料等几个方面探讨了潜水电机耐高压机座的铸造工艺。
All-metal motor and drive system, emergency lowering, high capacity batteries, and a 1.5 "wide fray-resistant lifting strap."
全金属电机和驱动系统，紧急下降，高容量电池，和一个1.5“宽磨损耐起重带。”
The exhaust fan has external motor and aluminum alloy blades, is explosion resistant and safe.
抽风机是外置式电机，铝合金风叶，防爆，安全。
The exhaust fan has external motor and aluminum alloy blades, is explosion resistant and safe.
抽风机是外置式电机，铝合金风叶，防爆，安全。
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