短语词组短语salivary y calculus 涎石removal of salivary calculus 涎石摘除术salivary calculus accretion 牙垢;翻译;涎石增积英语salivary calculus accretions 涎石沉积Calculus salivary gland 唾液腺结石calculus salivary duct 唾液腺导管结石 返回 salivary calculus