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<p>of a <a href="page.php?w=fuel">fuel</a> causes rapid pressurisation of the gaseous combustion products in the combustion chamber, causing them to expand and drive a <a href="page.php?w=piston">piston</a>, which turns a <a href="page.php?w=crankshaft">crankshaft</a>. Unlike internal combustion engines, a <a href="page.php?w=reaction_engine">reaction engine</a> (such as a <a href="page.php?w=jet_engine">jet engine</a>) produces <a href="page.php?w=thrust">thrust</a> by expelling <a href="page.php?w=reaction_mass">reaction mass</a>, in accordance</p><p>
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