试验和理论分析的结果都表明，在高含水量的松软水田土壤中，轮齿高对轮胎牵引性能的作用明显。
The experimental results have shown that in the soft, wet paddy soil with high moisture content, the lug height and slippage have very obvious effect on tractive performance.
自推进耕耘机械与传统的拖拉机农具机组相比，其结构简单，机组短，效率高，适合在水田和特殊地块作业。
Compared with tradition tractor and implement unit, a self propelled machine not only has simple structure, small unit and high efficiency, but also can be used in the paddy field and special area.
除水田、高覆盖草地和其他草地外的土地利用类型垂直重心下降。
The vertical centroid of land utilization type was descending, except irrigated fields, grassland with high coverage, and other grassland.
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