| 摘要 |
An adjustable carriage for a panel comprising, an elongate housing having a cavity and a bottom edge, a first slidable member, a second slidable member, and displacement means, wherein the elongate housing is adapted to receive, the first slidable member and second slidable member in the cavity in abutment with each other, and the displacement means are adapted to exert pressure against at least one of the slidable members to cause them to change their height within the cavity with respect to the bottom edge.
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