| 摘要 |
An excavation bucket assembly ( 10 ) is mounted to a tractor. A soil gathering trenching blade ( 48 ) is supported by an upwardly extending rear wall ( 18 ) and is movable down through a soil receiving opening ( 32 ) to scoop soil from beneath the ground wall ( 16 ) of the bucket, with the opening ( 32 ) being placed rearwardly of the front edge ( 30 ) of the ground wall, providing adequate space in the soil collection chamber ( 28 ) for receiving the excavated soil.
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