four-stroke engine

internal combustion engine type

en-GB/ˈfɔː - ˈstɹəʊk ˈɛnd͡ʒɪn/
en-US/ˈfɔɹ - ˈstɹoʊk ˈɪnd͡ʒən/

श्रेणियाँ:

reciprocating engine