辙叉

zhéchā

frog

* * *

辙叉

zhé chā

{铁道} frog

辙叉槽 frog flangeway;

辙叉导轨 lead of crossing;

辙叉工 frogger;

辙叉心 frog centre;

辙叉翼 frog wing;

辙叉趾(前端) frog toe