Terms for subject Rail transport containing between rails

English	Russian
between rails	междурельсовый
clearance between flange and rail	зазор между ребордой и рельсом
fillet radius between web and head of rail	радиус углубления между шейкой и головкой рельса
gap between rails	стыковой зазор между рельсами
insulation between ends of rails	стыковая прокладка
pumping between rails	разгрузка между рельсами