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。
On food safety and environmental hygiene, a new environment and food Bureau will be set up to oversee all the related functions.
新的环境食物局将会成立，负责监督各项与食物安全和环境卫生有关的工作。
Functions of wireless telecontrol used on impeller feeders are here explained, as well as its system build up and safety considerations for applying this technique.
用常规控制方法来实现对叶轮给煤机控制比较困难，因而对其实施无线遥控技术。
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