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介绍了免维护阀控密封铅酸蓄电池和内燃机车用铅酸蓄电池发展过程。同时还介绍了现今我们开发研究的内燃机车用NM-500型阀控密封铅酸蓄电池原理和结构及主要技术指标和基本特点,并与原N-420型开口铅酸蓄电池经济性能作了比较。
The development of maintenance - free valve regulated lead - acid batteries and lead - acid batteries for diesel locomotives are introduced. At the same time, the principle, structure, main technical index and basic characteristics of NM-500 VRLA battery used in diesel locomotive that we developed and studied are also introduced. Compared with the original N-420 type open lead acid battery, the economic performance is compared.