[KongchangAI]
Unverified75% confidenceFactTime unknown

带陶瓷轴芯的潜水泵比塑料轴芯耐磨,寿命普遍可达2万小时以上;水中含钙镁硬水地区应定期清理泵叶水垢,否则流量衰减、电机负载增大缩短寿命

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