声波吹灰器通过将压缩空气或蒸汽转换为高强度声波，利用声波振动使积灰因疲劳效应疏松脱落，最终被气流或重力清除

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引言你正在考虑购买一份重疾险，但面对市场上琳琅满目的消费型和储蓄型返还型重疾险，你是否感到困惑？你是否知道如何选择最适合自己的险种？本文将为您解答这些问题，并为您提供具有针对性、可操作性的建议。让我们

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