| 单词 | nitre bed |
| 释义 | > as lemmasnitre bed nitre bed n. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > nitrogen > [noun] > compounds > deposits or beds nitre bed1788 nitriary1839 nitrate deposit1853 nitre-heap1867 1788 Philos. Trans. (Royal Soc.) 78 329 Either in the natural formation of nitre..or in the nitre beds and walls made by art, a very large proportion of marine salts is constantly observed to accompany the nitre. 1807 A. Aikin & C. R. Aikin Dict. Chem. & Mineral. II. 159/2 In France the nitre-beds are composed of nitrous earth from farm-yards, stables, etc. 1951 Jrnl. Southern Hist. 17 188 Human urine was used in establishing artificial niter beds in several parts of the Confederacy—a practice which exposed the South to the jeers of Union soldiers. < as lemmas |
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