| 摘要 |
A cutting apparatus including a rotational cutter device disposed on a self-propelled machine. A device for jetting water used to prevent the scatter of dust from a jetting opening disposed near the cutting blade. And a cutting method including muddy dust and collected water are sent from the water tank to a filtering device. Clean water obtained by being filtered is stored in another water tank. And water is again supplied from water tank to the jet opening.
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