esophageal ring食道: eso phagus; maw; swallow环: ring; hoop食道环肌: circular muscle of oesophagus赤道环: equatorial flange; equatorial rim; equatorial ring管道环: pipe ring下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:食道环，即可在微信中查询翻译
