Definition of 保線要員 (ほせんよういん)
ほせんよういん
                        保線要員
ほせんよういん
hosen-youin
noun
•
        
railway (railroad) maintenance personnel
Related Kanji
| 保 | protect, guarantee, keep, preserve, sustain, support | 
| 線 | line, track | 
| 要 | need, main point, essence, pivot, key to | 
| 員 | employee, member, number, the one in charge |