| 单词 | reciprocal ratio |
| 释义 | > as lemmasreciprocal ratio reciprocal ratio n. Mathematics †(a) the ratio of the reciprocals of two quantities, equal to the reciprocal of the ratio of the quantities themselves (obsolete); (b) a ratio that is the reciprocal of a given ratio. ΚΠ 1699 Philos. Trans. (Royal Soc.) 21 353 Let there be two Proportions a, b : : e, l and b, c : : d, e, each having the same Terms b and e which consitute a Reciprocal Ratio, this Ratio we call Common, because it is Common to both Proportions. 1743 E. Stone New Math. Dict. (ed. 2) at Densities The Densities of any two Bodies are in a Ratio compounded of the direct Ratio of their Quantities of Matter, and the reciprocal Ratio of their Bulks. 1823 J. Mitchell Dict. Math. & Physical Sci. 412 Reciprocal ratio is the ratio of the reciprocals of two quantities. 1955 Biometrics 11 478 The relative efficiency of two methods of conducting a bio-assay is expressed by the reciprocal ratio of the values of (s/b)2 obtained in each instance. 2006 Vaccine 24 3220/1 The geometric mean titre of each type was performed on a logarithmic (base 10) scale from the reciprocal ratio of the antibody titre levels. < as lemmas |
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