rail replacer换: exchange; barter; trade轨: rail; track器: implement; utensil; ware定轨器: tractor feed复轨器: car replacer; chuck on; chucker on; re railing device; re-railing device; rerailer; rerailing apparatus; retracker下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:换轨器,即可在微信中查询翻译