食道：咽与胃之间的直管，借由蠕动使食物通过。
Esophagus: Muscular tube that conveys food by peristalsis from the pharynx to the stomach.
食道仅为咽和肠间的一段简单管。
The oesophagus is only a brief pipe between pharynx and intestine.
本实用新型涉及一种医用防反流式食道支撑管。
The utility model relates to a backflow prevention type esophagus supporting tube for medical use.
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