| 单词 | half floor |
| 释义 | > as lemmashalf floor half floor n. Shipbuilding (now chiefly historical) any of the paired timbers that meet or join over the keel and extend outwards so as to form the floor and unite the two sides of a frame; (also) such timbers joined to a central timber rather than meeting over the keel. Π 1822 J. Fincham Direct. Laying off Ships 22 In this system the first futtock butts upon a cross timber, which extends equally on each side of the middle line; and instead of the common first futtock, timbers called half floors are used, which abutt on the middle line, or overlap each other with a short scarph. 1903 L. Hope Small Yacht Constr. & Rigging i. xiv. 134 The ends of half-floor timbers are dovetailed into the sills for half their moulded depth. 2013 J. Adams Maritime Archaeol. Ships vii. 165/2 The alternative was to form the ‘V’-shape required out of separate timbers or ‘half floors’. < as lemmas |
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