英语语法分析

Radiofrequency ablation is often done on an outpatient basis.

射频消融术经常由门诊部完成。

What are the limitations of Radiofrequency Ablation of Liver Tumors?

射频消融术治疗肝肿瘤有那些局限性？

Radiofrequency ablation is less expensive than other treatment options.

射频消融术费用低于其它治疗方案。