[問題] TPK? FPK? SP? BCK? DC?

[jjwei ( <囧> )]

我只是有點好奇這些的全名是什麼，翻過了精華區內好像沒寫

我只猜出來 TPK = Third Passenger K??????
           SP = Sencond Passenger
           FPK = First Passenger K??????

然後DC是餐車，PPD是PP的行李車，PPH是PP設有殘障座位車廂，PPC是PP設有列車
長室車廂，PPT是拖車不是投影片(?)

BCK是商務車廂，PC不是電腦，PBK是電源車

不知有沒有強者有研究這些呢？

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