“permanent way tamping machinery”的概念、定义、翻译、参考文献-科学参考

单词	permanent way tamping machinery
释义	permanent way tamping machinery Encyclopedia 工学铁路养路机械释 permanent way tamping machinery线路捣固机械通过对铁路轨道的拨道、起道抄平，道砟捣固及道床肩部道砟夯实作业，提高轨枕底部和道床肩部道砟的密实度，增加轨道的稳定性，修正轨道方向、横向和纵向水平偏差，使之达到线路设计标准或线路维修要求的大型养路机械。又称捣固车，是铁路线路大修和综合维修的主型机械之一。
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