constituting a tube; having hollow tubes (as for the passage of fluids)
例句
用作形容词(adj.)
When the vocal folds are spread apart during quiet breathing, the larynx constitutes a tubular air tunnel with somewhat irregularly shaped walls.当声带在安静呼吸时分开，喉头构成一个管状的风洞，其管壁有些不规则。
