单词 | four-stroke internal-combustion engine |
释义 | four-stroke internal-combustion engine (extremely rare) n WORD FAMILY four-stroke internal-combustion engine n an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke; work is done on the third stroke and the products of combustion are exhausted on the fourth stroke Syn|Hyper four-stroke engine ICE, internal-combustion engine a heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine |
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