turnout from curved track的意思|示意
美 / /
英 / /
弯道道岔
turnout from curved track的网络常见释义
曲线出岔道岔 ... 尖轨跟端 heel of swith rail 曲线出岔道岔 turnout from curved track 辙叉心轨理论尖端 theoretical point of frog ...