介绍了现代数控机床主传动系统设计的基本要求，主传动系统设计及特点。
This paper introduced basic requirements of main driving system in modern NC machine tool. Design and feature are also described.
介绍了现代数控机床主传动系统设计的基本要求，主传动系统设计及特点。
Then, the main transmission system of machine tool is regarded as grey system, se.
在C6143型普通车床主传动系统中，由于传动比设计不够合理，致使主轴转速级数分布不均；
Due to the unreasonable design of the transmitting ratio in the major transmission system of lathe C6143, the progression of the spindle speed is asymmetrically distributed.
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