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外燃机
[机] external combustion engine
- 老式火车上和蒸汽船上的蒸汽机引擎就是外燃机最好的例子。
A steam engine in old-fashioned trains and steam boats is the best example of an external combustion engine. - 相比之下，内燃机比外燃机的效率高，比燃气轮机的价格便宜，比电动汽车容易添加燃料。
By contrast, the internal combustion engine is higher than the outboard engines in efficiency, cheaper than the price of gas turbines, easier than electric vehicles to add fuel. - 内部燃烧的效率比外部燃烧要高很多，每英里使用更少燃料。此外，内燃机与相同功率的外燃机相比体积要小很多。
Internal combustion is a lot more efficient (takes less fuel per mile) than external combustion, plus an internal combustion engine is a lot smaller than an equivalent external combustion engine.
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