Comparative study between color Doppler contrast enhanced ultrasonography and real-time harmonic gray-scale contrast enhanced ultrasonography in the diagnosis of hepatic tumors是什么意思_Comparative study between color Doppler contrast enhanced ultrasonography and real-time harmonic gray-scale contrast enhanced ultrasonography in the diagnosis of hepatic tumors在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句