internal combustion engine
US /ɪnˌtɜːr.nəl kəmˈbʌs.tʃən ˈen.dʒɪn/
UK /ɪnˌtɜːr.nəl kəmˈbʌs.tʃən ˈen.dʒɪn/
1.
内燃機関
an engine that generates motive power by the burning of gasoline, oil, or other fuel with air inside the engine, the hot gases produced being used to drive a piston or turn a turbine.
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Most cars today are powered by an internal combustion engine.
今日のほとんどの車は内燃機関によって動かされています。
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The efficiency of the internal combustion engine has greatly improved over the years.
内燃機関の効率は長年にわたって大幅に向上しました。