短语词组短语seminal duct diseases 精道疾病deferent duct seminal vesicle radiography 输精管精囊造影duct of seminal gland 精腺管duct of seminal vesicle 精囊管excretory duct of seminal gland 精囊腺排泄管excretory duct of seminal vesicle 精囊排泄管 返回 seminal duct