load switch meaning in English

负荷开关
负载电门
负载开关
置数开关

Generic specification of vacuum switch tubes for load switches
负荷开关用真空开关管总规范
Rated power load switch - off current 1250
额定有功负荷开断电流a 1250
Series of vacuum isolating load switch
真空负荷隔离开关系列
Grading standard of quality for vacuum switch tubes for load switches
负荷开关用真空开关管质量分等标准
Blank detail specification of glass vacuum switch tubes for load switches
负荷开关用玻璃真空开关管空白详细规范

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