短語(yǔ)詞組短語(yǔ)internal anal sphincter 內(nèi)括約肌anal sphincter preserving operation 保肛手術(shù)anal sphincter reconstruction 肌管重建Anal sphincter preservation 保肛術(shù)anal sphincter reservation 保肛手術(shù)relaxation of anal sphincter 肛管括約肌松弛External anal sphincter tucking aperation 外括約肌折疊術(shù)anal sphincter -preserving procedure 保肛術(shù) 返回 anal sphincter