| 单词 | tension wood |
| 释义 | > as lemmastension wood tension wood n. = reaction wood n. at reaction n. Compounds 2. ΘΚΠ the world > plants > part of plant > part of tree or woody plant > wood > [noun] > juvenile or reaction wood redwood1916 tension wood1924 compression wood1925 reaction wood1948 juvenile wood1956 1924 W. S. Jones Timbers iv. 27 ‘Tension’ or ‘white’ wood differs from ‘red’ wood in that the cell walls of the tracheids show a well-developed, strongly-lignified, tertiary layer. 1951 R. C. McLean & W. R. Ivimey-Cook Textbk. Theoret. Bot. I. xxi. 907 In conifers the lower wood is reddish, the upper white..the upper wood being called tension-wood. 1972 Gloss. Terms Timber (B.S.I.) 15 Tension wood. Abnormal wood..formed typically on the upper sides of branches and of leaning or crooked trunks of hardwood trees. < as lemmas |
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