| 单词 | chemical formula |
| 释义 | > as lemmaschemical formula chemical formula n. = formula n. 3b; also figurative. ΘΚΠ the world > matter > chemistry > elements and compounds > [noun] > compounds > formula as expression of compound constituents chemical formula1814 formula1846 1814 J. Black tr. J. J. Berzelius Attempt Sci. Syst. Mineral. 54 The chemical formula [Sw. kemiska formeln] for this composition is Ag + 2 S. 1862 Philos. Trans. (Royal Soc.) 152 870 The compounds included..are not simply solutions, but liquids to which a definite chemical formula may be assigned. 1901 Times 21 Dec. 9/1 In other words poverty is reduced to a chemical formula. 1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) Introd. 7 Our chemical formulæ..express not merely a percentage relation, but at the same time the smallest quantity of the compound which is capable of existing as such, i.e. a molecule. 2000 R. Sterling World Food: Spain 101 Sangría is an idea, not a chemical formula. Some people might use apple juice, or pineapple juice... How much of this or that to add to the wine depends on the wine. 2007 Evening Standard (Palmerston North, N.Z.) (Nexis) 19 Mar. 8 Silicon and oxygen combine in the common mineral quartz, chemical formula SiO2. < as lemmas |
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