External Annular Venoconstriction on the First Valve of Superficial Femoral Vein for Primary Deep Venous Valve Insufficiency in Lower Limb (Report of 40 Cases)是什么意思_External Annular Venoconstriction on the First Valve of Superficial Femoral Vein for Primary Deep Venous Valve Insufficiency in Lower Limb (Report of 40 Cases)在线翻译_英语_读音_用法_例句