振动是直流传动系统中的一种常见现象。

Motor vibration is a familiar phenomenon in DC drive system.

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本文设计了大型挖掘机直流传动系统的激磁调节电路。

An excitation control circuit tor direct current drive system of large power shovel has been designed.

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针对电动汽车驱动系统的特殊性，分析了直流传动系统和交流传动系统的特点。

This paper discusses two different drive models for EV. and analyzes DC drive system and AC drive system by considering the particularity of drive system for EV.

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