| 摘要 |
A refiner includes a driving source, a rotating shaft rotated by the driving source, a conical-type rotor. attached to the rotating shaft, stators disposed in a casing to face the conical-type rotor. The conical-type rotor has a substantially cone-shape first conical portion and a substantially cone-shape second conical portion, and bottom portions of the first and second conical portions are joined together. The rotating shaft passes through top portions of the first and second conical portions, and the conical-type rotor is attached to the rotating shaft.
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