履带销是自行火炮推进装置中重要的传力元件。
The track pin is an important component for transferring load in the propulsion device of a self-propelled gun.
为了合理地预测湿软地上履带行走装置的推进力，对履带板的推力计算模型进行了修正。
In order to reasonably predicate the pull of track driving device on wet and soft terrain, the pull model of track shoes is revised.
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