| 摘要 |
A reusable spacer tool comprises a pair of opposed spacer members each having a plurality of ears projecting from a base portion toward the opposite member, the ears being arranged for reception in the joints between adjacent blocks to space apart edges of the blocks when the spacer members overlie opposite faces of the block at the corners, and tie means extending between the spacer members and removably secured thereto releaseably hold the members against opposite faces of the blocks.
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