| 摘要 |
A trailer having a length varied by the extension of beams from an extendable end. The trailer is further defined by having a saw on the extendable end and a crane for holding trees on the other end, which is typically a low end. The trailer also has, at the extendable end, hydraulicly controlled supports for leveling the trailer at the extendable end. The trailer is also defined as being extendable in width as well as the length.
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