mold·board /ˈmol(d)ˌbord, ˌbɔrd/
犁板
Mold·board, Mould·board n.
1. A curved plate of iron (originally of wood) back of the share of a plow, which turns over the earth in plowing.
2. Founding A follow board.
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moldboard
n : wedge formed by the curved part of a steel plow blade that
turns the furrow [syn: mouldboard]