Its low radar cross-section, variable-geometry wings, advanced avionics, and afterburning engines combine to provide long range, maneuverability, high speed and survivability.
The term "variablegeometry" is very fashionable in international politics.
“可变几何”一词在国际政治中非常流行。
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The idea is to oscillate the turbocharger's variablegeometry and synchronise it with the engine exhaust to get better energy recovery from the pulsating exhaust flow.