This wireless technology relies upon an extensive network of fixed antennas, or base stations, relaying information with radiofrequency (RF) signals.

这种无线技术依靠使用射频(RF)信号传递信息的固定天线(即基台)的广泛网络。

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Objective: To evaluate the safety and efficacy of cooled radiofrequency (RF) ablation for arrhythmias by saline irrigation catheter.

目的：观察冷盐水灌注导管射频消融治疗心律失常的疗效及安全性。

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Objective to investigate the efficacy of radiofrequency (RF) ablation comparing with percutaneous ethanol injection (PEI) in the treatment of postoperative recurrent hepatocellular carcinoma.

目的比较原发性肝癌术后复发患者的射频(RF)治疗和无水酒精注射(PEI)治疗，探讨RF治疗的疗效。

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Several days ago the Federal Communications Commission announced that it would undertake a re-examination of the standards limiting how much radiofrequency (RF) energy can be emitted by cellular telephones.

FORBES: Should The FCC Re-Examine Cell Phone Radiation?