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针对ND5型机车机械式温度开关存在的问题提出了以电子式温度开关取而代之的设想，并详细介绍了电子式温度开关的工作原理与加装施工方案。
Aiming at the existing problems of mechanical temperature switch for ND5 locomotive, the idea of replacing it with electronic temperature switch was put forward. The working principle and installation scheme of electronic temperature switch were introduced in detail.