Objective To evaluate therapeutic effect of external valve support(EVS) implantation in the treatment of primary deep venous insufficiency(PDVI).是什么意思_Objective To evaluate therapeutic effect of external valve support(EVS) implantation in the treatment of primary deep venous insufficiency(PDVI).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句