按: press; push down薄: duckweed翼: the wing of a bird理论: theory展: open up; spread out; expand; ...成: accomplish; succeed级数: progression; series; number ...法: law展成级数: expanding; expansion in series; series development薄翼理论: thin airfoil theory; thin wing theory; thin-airfoil theory; thin-wing theory环状薄翼理论: theory of thin annular airfoil薄翼理沧: thin airfoil theory生成级数: generating series展开成级数: expansion in series理论展开翼型: theoretically developed profile展成部级数: expansion in series短翼理论: small aspect-ratio wing theory厚翼理论: theory of thick airfoil; thick wing theory机翼理论: aerofoil theory; airfoil theory; wing theory水翼理论: hydrofoil theory狭长翼理论: slender-wing theory分解成级数求解: series solution幂级数法: method of power series; power series method机翼理论方程: wing equation喷气襟翼理论: jet flap theory
