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。
A solid solution of ferric carbide or carbon in iron; cools to form pearlite or marten site.
含铁碳化物或含碳铁的固体溶体，冷却可形成珠光体或马氏体。
The desulfurization mechanism, kinetic models and regeneration methods for the single desulfurizer of activated carbon, ferric oxide and zinc oxide used at a lower temperature are summarized.
阐述了应用于低温条件下的活性炭、氧化铁和氧化锌等单一组分脱硫剂的脱硫机理、动力学模型及再生方法。
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