abbreviation for radiofrequency ablation: a medical treatment that involves removing tissue from something such as a tumour (= a mass of diseased cells) that is causing pain or problems in the body, using radio waves

Studies suggest RFA provides safe and effective local treatment for some cancers, including liver and lung tumours. 研究表明，射频消蚀术为一些癌症提供了安全有效的局部治疗，包括肝癌和肺癌。

abbreviation for Royal Fleet Auxiliary: part of the UK navy that supplies fuel, food, weapons, and other things needed by the UK armed forces

My grandfather was on RFA Sir Galahad when it was bombed.

Three RFA ships were supplying British forces in Sierra Leone. 三艘皇家海军辅助舰向驻扎在塞拉利昂的英军提供补给。

abbreviation for restricted free agent

The table below shows how much professional experience is needed to qualify as an RFA in the NHL. 下面这张表格显示要获得北美国家冰球联盟的受限制自由球员资格需要多少专业经验。