carburettor
noun [ C ] UK (US carburetor) uk/ˌkɑː.bəˈret.ər/ us/ˌkɑːr.bəˈret̬.ɚ/
汽化器,化油器(汽车发动机部件)
the part of an engine that mixes fuel and air, producing the gas that is burned to provide the power needed to operate the vehicle or machine