| 摘要 |
An extendible tool includes a telescopic cylinder support having a first end and a second end. A telescopic cylinder is mounted on the telescopic cylinder support. The telescopic cylinder has a first position toward the first end of the telescopic cylinder support, and a second position toward the second end of the telescopic cylinder support. The telescopic cylinder is movable between the first position and the second position. A tool is mounted on the telescopic cylinder, such that when the telescopic cylinder is extended in the first position, the tool travels between a first point and a second point, and such that when the telescopic cylinder is extended in the second position the tool travels between the second point and a third point.
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