基本解释[医药科学]口服法尿路造影术英汉例句双语例句AIM: To study the value of oral ferric ammonium citrate(FAC) solution as a negative gastrointestinal contrast agent in MR urography(MRU).目的：研究枸橼酸铁铵作为胃肠道阴性对比剂对改善磁共振尿路成像（MRU）质量的价值。oral urography更多例句专业释义医药科学口服法尿路造影术