electric operation短语¹⁴⁴⁹⁷²⁺² 基本例句 电运转 The structure, performance and standard of the circuit breaker, knife switch electric operation and automatic transfer switching equipment ATSE were compared and analyzed. 对断路器、刀开关电动式和自动转换开关电器 ATSE三种产品在结构、性能及符合标准等方面进行了分析与对比。 cnki