(~s)
A ~ is a cylinder or metal disc that is part of an engine. Pistons slide up and down inside tubes and cause various parts of the engine to move.
N-COUNT
(~s)
A ~ is a cylinder or metal disc that is part of an engine. Pistons slide up and down inside tubes and cause various parts of the engine to move.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012