| 摘要 |
An axial flow harvesting machine having at least one rotor operable within a casing to thresh and separate grain from straw material is disclosed wherein the rotor has an infeed portion, an adjacent threshing section, and a rearward separating section. The rasp bars on the threshing section immediately adjacent to the infeed portion are replaced by crop thinning elements cooperable with the casing to thin the straw material before being subjected to the threshing action of the remaining rasp bars in the threshing section.
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