| 摘要 |
This disclosure relates to a table with a variable shape surface and locking cylinder therefor wherein the table is comprised of a plurality of vertically disposed resistance locking cylinders, each of which has a piston rod, the upper portion of which forms a portion of the variable shape surface. The piston rod is locked in place by a plurality of wedging members within the cylinder, the wedging members being forced against the piston rod when the piston rod encounters substantial resistance as it is extended.
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