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1·The preventive maintenance for the commutator of the DC machine is of great importance.

大容量直流电机是轧钢车间的主体设备，对其换向器的维护工作更显得重要。

2·In the separately excited dc machine, the field winding is excited from a separate source.

对于它励直流电动机，励磁线圈由一个单独的电源来励磁。

3·Maintenance practices for the commutator of the DC machine in the steel mill are introduced in this paper.

本文着重介绍了冶金企业轧钢车间大型直流电机换向器的现场维护工作和体会。

4·If the excitation current is too great, adopting DC machine excitation would require more collecting rings.

如果励磁电流太大，采用直流机励磁则会引起集电环的对数增多。

5·A rotating commutator on the dc machine, used as an exciter, was a common means for achieving rectification in the past.

在过去，直流励磁机上的旋转整流子是用作整流的普遍措施。

6·Accurate calculation of winding inductance parameter is important to the dynamic performance analysis of PM (permanent magnet) brushless DC machine.

绕组电感参数的准确计算对于永磁无刷直流电机的动态性能分析具有重要的意义。

7·Create ha.cf on the machine assigned as the DC (designated coordinator).

在分配为DC (designated coordinator)的机器上创建ha . cf。

8·Comparing with frequency converting driving system for asynchronous machine and adjustable speed for DC motor, the driving system has a wide application foreground.

与变频异步电机驱动系统和直流电机调速系统相比，开关磁阻电机驱动系统有着广阔的应用前景。

9·All that he and his colleagues want at their Sunlight Labs—part of a non-profit group based in Washington, DC—is machine-readable data.

在阳光实验室（Sunlight Labs）——位于华盛顿特区的一家非营利组织的一部分，他和他的同事想要的只是机器可读数据。

10·The method of finite state machine together with PWM circuit is given to realize the algorithms of Voltage Space Vector control and 120 electrical Angle changing phase control of DC brushless motor.

针对电机空间矢量控制和直流无刷电机120电角度换相控制算法的电路实现，采用了控制状态机与PWM发生电路相结合的方法。