What does Fallopian tube Eustachian tube mean here The nomenclature used should conform to the current edition of the Nomina Anatomica Nomina Anatomica Veterinaria or to the Nomina Anatomica Avium Ep

In this context, "Fallopian tube" and "Eustachian tube" refer to anatomical structures in the human body. The sentence is stating that when naming anatomical structures, one should use the current edition of the Nomina Anatomica or Nomina Anatomica Veterinaria, and not rely on eponyms (terms named after a person) such as "Fallopian tube" or "Eustachian tube".