relay test set
... relay test set 继电器测试设备 relay-set 继电器装置 protective relay test set 保护继电器测试仪 ...
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设计一种满足测试要求的专用设备是提高继电器静态吸反力特性测试水平的必然技术途径。
So, it is necessary to design a special apparatus satisfied with testing demands in order to improve the testing level of relay's static attractive force and spring force characteristics.
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