| 单词 | quadruple expansion |
| 释义 | > as lemmasquadruple expansion quadruple expansion n. the use of four stages of expansion in a compound steam engine, the same steam expanding successively in four cylinders; usually attributive. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > engine > steam engine > [noun] > types of fire waterwork1663 steam-wheel1797 Cornish engine1840 beam-engine1844 machine-whim1848 screw engine1852 donkey-engine1858 quadruple expansion1861 tandem engine1878 uniflow1971 1861 N. Amer. Rev. Aug. 177 In the triple and quadruple expansion engine the forces are more widely distributed than in the compound, and they are capable of being more exactly balanced. 1894 J. J. Astor Journey in Other Worlds i. iv. 48 The electricity generated by..slow-moving quadruple-expansion steam engines, provides the power required to run our electric ships. 1952 W. J. Fox & S. C. McBirnie Marine Steam Engines & Turbines vii. 137 The quadruple-expansion engine is not now so common as formerly, and modern practice appears to favour the triple-expansion engine with fairly high initial superheat. 1982 S. B. Flexner Listening to Amer. 164 The quadruple-expansion engine was just being introduced when the reciprocal steam engine was supplanted by the steam turbine. < as lemmas |
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