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什么时候应该维修或更换电梯部件?

Ask Time: 2026-06-26
Answer
考虑安全重要性、故障模式、剩余寿命、维修可靠性、零件可用性、停机时间和总成本。关键安全决策需要合格的审查。
Answer Time: 2026-06-27

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