梯纹导管

1.scalariformduct  

梯的英语翻译：

ladder; stairs; terraced

纹的英语翻译：

grain; lines; veins
【医】 streak; stria; striae; striation; stripe

导管的英语翻译：

catheter; conduit; duct; meatus; pipe; trachea
【化】 connecting conduct
【医】 catheter; conductor; duct; ductus; iter