When the motor stator coil is electrified, the motor rotor rotates together with the spindle blade.
电动机定子线圈通上电源，电动机转子就和锭杆一起转动。
Increasing spindle speed makes the diamond blade cut harder, decreasing the spindle speed makes the blade cut faster.
提高转速使金刚石刀片切割难度，降低主轴转速使刀片切割速度更快。
There may be one electric generator, which generates electricity when the core shaft rotates the saw blade and the laser spindle.
该激光心轴可包括一发电机，一心轴转动锯片和激光心轴时该发电机发电。
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