🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTürkçeРусскийالعربيةفارسیไทย한국어中文日本語EntityQ828137· pop 34· linked from 2,371 articlescompression ratioRatio of the volume of a combustion chamber from its largest capacity to its smallest capacityAvailable in 34 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBahasa IndonesiaBosnianConnectionsdead centreEntitydiesel engineEntityCategoriesEngineering ratiosEngine technologyPiston engines