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单词 nitrate deposit
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nitrate deposit
nitrate deposit n.
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the world > matter > chemistry > elements and compounds > metals > specific elements > nitrogen > [noun] > compounds > deposits or beds
nitre bed1788
nitriary1839
nitrate deposit1853
nitre-heap1867
1853 A. Ure Dict. Arts (ed. 4) 273 The nitrate deposits commence about Tilineche, and extend south.
1881 Daily News 22 Jan. 2/6 The nitrate deposits, which are practically inexhaustible.
1952 A. M. Smith Manures & Fertilisers v. 106 Sodium nitrate is produced by chemical synthesis, but the bulk of it is obtained from the crude nitrate deposits in Chile.
extracted from nitraten.
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