| 摘要 |
A double hopper system is disclosed. The double hopper system includes, a first hopper and a second hopper. The first hopper has a first and a second opening, and the second hopper is arranged above the second opening of the first hopper and extends into the second opening of the first hopper. The first opening of the first hopper has a predetermined length and a distribution area, and the second hopper is movably arranged with respect to the first hopper, such that the second hopper is movable over at least � of the length of the first opening of the first hopper. |
