| 单词 | ridge board |
| 释义 | > as lemmasridge board ridge board n. ΚΠ 1770 C. Varlo New Syst. Husbandry I. vi. 106 A ridge board..must go across the middle of the house, and support the middle of the spars, in order to strengthen them. 1881 F. Young Every Man his own Mechanic §970 The rafters may abut after the manner of rafters against the ridge-board or pole of a span roof. 1993 Collins Compl. DIY Man. (new ed.) iii. 122/2 Pitched (sloping) roofs comprise angled rafters fixed to a ridge board. < as lemmas |
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