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介绍了哈尔滨车辆厂研制的ＰＧ２８型铺轨机（主机）车辆的结构概况、技术性能、用途、车体强度及刚度和运用维护保养等情况。
This paper introduces the structure, technical performance, application, strength and rigidity of the PG28 type track laying machine (host) developed by Harbin Vehicle Factory and the application, maintenance and so on.