介绍了大同机车厂在扭亏脱困工作方面的具体做法。

This paper introduces Da Tong Rolling Stock Plant's specific method for making up deficits.

youdao

介绍了大同机车厂在扭亏脱困工作方面的具体做法。

This paper introduces Da Tong Rolling Stock Plant's specific method for making up deficits.

youdao