常見(jiàn)例句雙語(yǔ)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：研究枸櫞酸鉄銨作爲(wèi)胃腸道隂性對(duì)比劑對(duì)改善磁共振尿路成像（MRU）質(zhì)量的價(jià)值。 返回 oral urography