| 释义 |
four-stroke, a.
[four a. + stroke n.1]
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.
1900W. W. Beaumont Motor Vehicles xi. 190 The two cylinders give an impulse for each revolution with a four-stroke cycle. 1902P. 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. 1906Motor Boat 12 July 14/1 A four-stroke engine. 1951Engineering 6 July 2/1 Valve..drives are more heavily stressed in two-stroke working than in four-stroke working. |