| 单词 | purlin |
| 释义 | purlin /perr"lin/, n. a longitudinal member in a roof frame, usually for supporting common rafters or the like between the plate and the ridge. Also, purline. See diags. under king post, queen post. [1400-50; late ME purlyn, purloyne, akin to AL perlio; of uncert. orig.] |
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