| 摘要 |
PROBLEM TO BE SOLVED: To make soil in a field dug up by a moldboard drop in a more surely reversed state when the soil falls from the action face of the moldboard on the field. SOLUTION: The main body of the moldboard is provided or equipped with a back side drop preventing member 2 for preventing soil in a field which is dug up by the main body 1 of the moldboard from jumping over the upper edge of the main body of the moldboard and falling on the reverse side of the main body of the moldboard.
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