| 摘要 |
A disc cutter is rotatably mounted on a self-contained power unit which is detachably mounted on lift arms of a hydraulic excavator for locating the disc cutter at a position on the opposite side of a stump from the excavator and providing curling movement of the rotating disc cutter through the stump towards the excavator in the line of sight of the operator for discharging the debris away from the operator.
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