| 单词 | four-stroke engine |
| 释义 | > as lemmasfour-stroke engine In internal combustion engines, designating a cycle of operations which consists of four strokes (intake, compression, combustion, and exhaust); also four-stroke engine, four-stroke working. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > engine > internal-combustion engine > [adjective] > cycle two-stroke1855 four-stroke1900 two-cycle1903 1900 W. W. Beaumont Motor Vehicles xi. 190 The two cylinders give an impulse for each revolution with a four-stroke cycle. 1902 P. N. Hasluck Automobile vi. 113 Petrol motors employed on automobiles belong..to the compression and explosion type, and the Beau de Rochas four-stroke cycle of operations, known in Great Britain as the Otto cycle, is employed almost exclusively. 1906 Motor Boat 12 July 14/1 A four-stroke engine. 1929 Encycl. Brit. XV. 881/2 Practically all automobile engines operate on what is called the four stroke cycle. 1951 Engineering 6 July 2/1 Valve..drives are more heavily stressed in two-stroke working than in four-stroke working. < as lemmas |
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