求翻译：3、电动车电池一年内发生性能故障，经维修无法正常使用的，前六个月内更换新电池，超过六个月的更换维护电池；鼋摩鼋池六个月内发生性能故障，是什么意思？

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3 performance failure occurs within a year, electric vehicle batteries, maintenance is not in working condition, the first six months to replace the batteries with new, replacement battery for more than six months; soft-shelled turtle Pelochelys cantorii pool performance failure occurs within six mo

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