biconvex airfoil双凸: biconvex翼: the wing of a bird剖面: bisect; section; profile两凸翼剖面: biconvex section双凸翼型: bi-curved profile; biconvex airfoil; biconvex profile; double convdex airfoil; double-arc profile; lenticular airfoil下载手机词典可随时随地查词查翻译