noun
National Railway Motive Power Union
Proper noun; name of a specific labor union in Japan.
国鉄動力車労働組合は、国鉄の動力車乗務員で組織された労働組合である。
The National Railway Motive Power Union was a labor union organized by JNR motive power crew members.
Compound of 国鉄 (national railway), 動力車 (motive power vehicle), and 労働組合 (labor union).