| 单词 | heart shake |
| 释义 | > as lemmasheart shake heart shake n. (a) any of a number of splits or clefts in a piece of timber radiating out from the heart (frequently in plural); cf. shake n.1 9a (b) a pattern of splitting of this nature. ΘΚΠ the world > plants > part of plant > part of tree or woody plant > wood > [noun] > cleft or shake lag1579 shake1651 heart shake1802 ring shake1868 gum-shake1887 1802 in Naval Documents U.S. Wars Barbary Powers (U.S. Office Naval Rec.) (1940) II. 120 Those [timbers] for the frames..should also be of sufficient quality, none that have large heart-shakes..should be received. 1875 T. Laslett Timber & Timber Trees 25 Timber having much heart-shake. 1884 Spons' Mechanic's Own Bk. (1886) 167 ‘Heartshakes’: splits or clefts in the centre of the tree; common in nearly every kind of timber. 1993 Collins Compl. DIY Man. (new ed.) xii. 510/3 (heading) Heart shakes. These are splits that occur along radial lines in the log. < as lemmas |
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