=Japanese National Railways 日本国有铁路

[ noun ]
a son who has the same first name as his father
<noun.person>

Jnr \Jnr.\ n.
Abbreviation for Junior, used after a name by a son who has
the same first and last name as his father; -- less commonly
used than {Jr.}

Syn: Junior, Jr.
[WordNet 1.5]