PROBLEM TO BE SOLVED: To provide a controller which protects a neutral point resistor, etc., by breaking a current immediately in case that a large current flows in an earth transformer and continues to flow to the neutral point resistor, and enables easy replacement in case that the neutral...
摘要: 在黄海深处的大连长海县海洋岛上除驻防的陆海空军部队外,还有一支成立于上世纪60年代的传奇队伍,这就是海洋岛'三八'女炮班.59年来,一代代'三八'女炮班的渔家女与驻岛部队共同进行操炮训练,她们以'巾帼不让须眉'的气概,守岛建岛,荣获'黄海前哨模范女炮班'称号. 关键词: 海洋岛 年份: 2019 收藏...