| 摘要 |
A plow comprising a first plowing wing; a second plowing wing coupled to said first plowing wing wherein said first and second plowing win gs are pivotable with respect to each other; a first bottom plate affixed to said first plowing wing; and a second bottom plate affixed to said second plowing wing, wherein said first bottom plate and second bottom plate overlap to form a bottom glide surface of the plow.
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