a mark caused by the exposure of a ray (in sense 9a) on the surface of (quarter-sawn) timber.
| 单词 | θ215116 |
| 释义 | society > occupation and work > materials > raw material > wood > [noun] > marking from exposure of ray (1) ray fleck1933 a mark caused by the exposure of a ray (in sense 9a) on the surface of (quarter-sawn) timber. |
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