autogenous pressurization
... that the Space Shuttle used autogenous pressurization to keep its external fuel tank pressurized after engine ignition?
... that the <a href="./Space_Shuttle" id="mwAxY" rel="mw:WikiLink" title="Space Shuttle">Space Shuttle</a> used <b id="mwAxc"><a href="./Autogenous_pressurization" id="mwAxg" rel="mw:WikiLink" title="Autogenous pressurization">autogenous pressurization</a></b> to keep <a href="./Space_Shuttle_external_tank" id="mwAxk" rel="mw:WikiLink" title="Space Shuttle external tank">its external fuel tank</a> pressurized after engine ignition?