This paper discusses the necessity of setting up the high frequency electrical knife safety system and its functions of the output frequency control, the time control and the self-test.

本文介绍建立高频电刀安全保障系统的必要性，以及该系统应具有的输出频率检测，时间检测和自检等功能。

youdao

It emits an electrical charge and cuts through flesh but healing is much quicker than with a knife.

BBC: How Los Angeles surgeons cope in the gang war zone