ham·mer·beam 
(hămər-bēm′)
(hămər-bēm′)n.
A short horizontal beam projecting inward at the top of an interior wall, used in opposite pairs instead of a tie beam as a support for arched roof braces.
| 单词 | hammerbeam |
| 释义 | ham·mer·beam (hămər-bēm′)n. A short horizontal beam projecting inward at the top of an interior wall, used in opposite pairs instead of a tie beam as a support for arched roof braces. |
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