短语词组短語salivary y calculus 涎石removal of salivary calculus 涎石摘除術salivary calculus accretion 牙垢;繙譯;涎石增積英語salivary calculus accretions 涎石沉積Calculus salivary gland 唾液腺結石calculus salivary duct 唾液腺導琯結石 返回 salivary calculus