| 单词 | plant bed |
| 释义 | > as lemmasplant bed plant bed n. (a) U.S. a bed of earth used for germinating seeds and growing young plants, formerly esp. tobacco seedlings; (b) Geology a stratum containing fossil plants. ΘΚΠ the world > food and drink > farming > cultivation or tillage > sowing > [noun] > seed-bed seedbed1660 plant bed1784 the world > the earth > structure of the earth > structural features > sedimentary formation > [noun] > stratum > stratum by constitution > organic remains or fossils moorlog1655 coal plant1695 leaf bed1697 plant bed1784 oyster bed1833 stem-bed1853 forest-bed1861 starfish bed1861 fish-bed1869 insect-bed1893 lagerstätte1972 1784 J. F. D. Smyth Tour U.S.A. II. lviii. 83 Every tobacco planter..generally has several of these plant-beds in different situations, so that if one should fail another may succeed. 1833 Niles' Reg. 44 411/1 He is clearing new grounds; preparing and burning plant-beds. 1881 Rep. Geol. Explor. N. Zealand 48 The Mataura series in the Hokanui Hills overlying the plant-beds. 1990 New Phytologist 114 159/2 The plant bed..consists of finely bedded carbonaceous silts bearing abundant pollen and spores. < as lemmas |
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