In fact, the story prototype of the TV series "Pentium Age" is the development history of electric locomotives in China. Although the protagonist Chang Hanqing is a fictional character, we can also see the epitome of a group of human engineers and the whole story development process from Chang Hanqing.
Chang Hanqing, a young technician in the play, has just returned from studying abroad and met Jin Cancan, a female combat hero who changed jobs from railway soldiers to factories. After marriage, they overcame all kinds of difficulties from life, studied technology together, and devoted their lives to the development and construction of electric locomotives in China.