概念验证 Traditional 概念驗證 gài niàn yàn zhèng 🔊 proof of concept + Keep this word Meanings gài niàn yàn zhèng 概念驗證 proof of concept Its characters 概gàigeneral; approximate念niànto readHSK 5验yànto examineHSK 7–9证zhèngcertificateHSK 4