railroad tie meaning in English
铁道枕木
铁路轨枕
铁路枕木
Examples
- Steel wire , deformed for prestressed concrete railroad ties
预应力混凝土轨枕用变形钢丝 - Standard specification for steel wire , deformed , stress - relieved or low - relaxation for prestressed concrete railroad ties
预应力混凝土铁路轨枕用应力消除或应力低松弛变形钢丝的标准规范