turbofan
noun [ C ] uk/ˈtɜː.bəʊ.fæn/ us/ˈtɝː.boʊ.fæn/
涡轮风扇发动机，内外函喷气发动机;涡轮风扇式飞机
a turbine used as an engine, especially for an aircraft, that provides some force for movement from the gas that it pushes out, and some by turning a large special wheel with blades that also pushes air out, or an aircraft driven by this type of engine