In order to improve the mobility of light-duty cross-county wagon the research works are as follows according to the acceleration : 1 .

为提高轻型越野 车的机动性能，专门针对加速性能进行了如下的研究 工作。

Such characteristics as the general structural conditions technical performances usage carbody strength & rigidity operation and maintenance of the wagon for the track laying machine ( main engine ) type PG 28 developed by Harbin Rolling Stock Works are introduced .

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。