Tolong jelaskan mengenai Misalnya dari PT Kereta Api Indonesia dalam bahasa melayu

D301 70 70: operated since 1970, the 70th member of the second class of D type diesel-hydraulic locomotive

CC203 85 13: operated since 1985, the 13th member of the fourth class of diesel electric locomotives with Co-Co wheel arrangement

kelas lokomotif diesel PT Kereta Api Indonesia (Persero)