| 单词 | fuel-value |
| 释义 | > as lemmasfuel-value fuel-value n. (a) the value of a combustible article as fuel; (b) the value of food as a source of energy; the amount of energy obtained by the body from a given quantity of food. ΘΚΠ the world > food and drink > food > [noun] > food value food value1859 fuel-value1886 biological value1915 society > occupation and work > materials > fuel > [noun] > value as fuel fuel-value1886 1886 Lett. fr. Donegal 36 Bog once ‘cut out’ does not grow again, and the fuel-value is permanently lost to the land. 1902 W. G. Thompson Pract. Dietetics (ed. 2) i. 13 A day labourer requires 0·28 pound of protein per diem plus enough fat and carbohydrate to yield a total fuel value of 3,500 calories. 1928 A. B. Callow Food & Health 18 Water cannot be burnt in the body, and therefore has no fuel-value. 1949 L. J. Bogert Nutrition & Physical Fitness (ed. 5) viii. 122 In general, the foods with high fuel value will be seen to be those which are either rich in fat or low in water content. 1964 H. H. Mitchell Compar. Nutrition Man & Domest. Animals II. xviii. 480 In terms commonly used in human nutrition, the fuel value or available energy in the diet would be 2745 cal. < as lemmas |
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