(a) each of a number of categories into which timber intended for structural use may be placed according to its estimated strength (cf. stress grading…
单词 | θ215139 |
释义 | society > occupation and work > materials > raw material > wood > [noun] > building wood > grading of (1) stress grade1922 (a) each of a number of categories into which timber intended for structural use may be placed according to its estimated strength (cf. stress grading… |
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