例句與造句

1. As the blocks wear down ( from contact with the motor's rotating commutator ), a gap develops and power is diminished.
2. The rotary converter can be thought of as a motor-generator, where the two machines share a single rotating commutator which allows DC current to be extracted from the rotor.
3. The Rheostatic Machine used a bank of mica capacitors, a clever rotating commutator and a series of contacts to alternately charge a bank of capacitors in parallel ( from a high-voltage battery source ) and then connect the capacitors in series.
4. It's difficult to find rotating commutator in a sentence. 用rotating commutator造句挺難的