| 摘要 |
A fixing seat includes a foundation bed and two clamping arms arranged on opposite sides of the bed, respectively. At least one of the clamping arms is movable transversely. A longitudinal slide channel is formed in each clamping arm to movably receive at least a protruding clamping portion that is movable along the slide channel, whereby the longitudinal and transverse distances between the clamping portions are both adjustable.
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