platelayer
plate |lay ¦er |ˈpleɪtleɪə | ▶noun Brit. a person employed in laying and maintaining railway track.
pl á te l à yer 名詞 C ⦅英 ⦆(鉄道の )線路工手 [敷設員 ], 保線係 (⦅米 ⦆tracklayer ).