crosstie

1. "crosstie: a transverse beam or rod serving as a support, especially a beam that connects and supports the rails of a railroad."
   “横木，枕木：一种起支撑作用的横向木杆，尤指连接和支承铁路轨道的枕木.”
2. Improving the Calculating Method Used for Crosstie of Framed Wooden Case
   对框架木箱枕木计算方法的改进

noun

1. one of the cross braces that support the rails on a railway track
   1. the British call a railroad tie a sleeper

   Synonym:    tierailroad tiesleeper