There was dot money in the hand slowly, bought 1 four - wheel tractor, kind crops, run carry.

慢慢地手里有了点钱, 便买了1台小四轮拖拉机, 种庄稼, 跑运输.

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The paper analyses mutuality parameter Wheel Tractor - Scraper and provides the theoretical basis for guiding our production.

本文详细分析了铲运机相关参数,为指导生产提供了理论依据.

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