surge protection短语⁹⁶⁶⁷⁷⁺⁶ 基本例句 过高峰电压保护 Briefly describe the necessity of developing low voltage surge protection device. 概述了开发低压避雷电器过压保护器的必要性。 ilib Furthermore, it describes how to properly place surge protection device SPD so as to save investment. 同时从节约投资的角度讨论了如何正确设置 SPD。 cnki