steam engine
US /ˈstiːm ˌen.dʒɪn/
UK /ˈstiːm ˌen.dʒɪn/
1.
蒸汽机, 蒸汽火车
a machine that converts the heat energy of steam into mechanical energy, typically used to power trains or other machinery
:
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The old steam engine chugged slowly down the tracks.
那台旧蒸汽机车沿着轨道缓慢行驶。
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James Watt made significant improvements to the steam engine.
詹姆斯·瓦特对蒸汽机进行了重大改进。