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1·Place coil spring in the correct position-tighter winding facing down-on the vibration damper.

将螺旋弹簧(紧密绕组朝下)放置在振动阻尼器的正确位置。

2·The variables compared include the phase voltage and the phase current of the armature winding, the field current, the load current and the damper bar currents.

所比较的变量有电枢相电压和相电流、励磁电流、负载电流以及阻尼条电流。