make and break短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 n.接与断 As a branch of intelligent low voltage apparatus, the recent achievement in study of this field was introduced. The method and approach of the intelligent make and break operation were analyzed. 作为智能化电器的另一分支，本文介绍这一领域国外近期研究进展，分析了接触器接通过程中进行智能操作的途径和方法。 cnki