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http://www.hwenz.com/pic/陈述文教的格局文教期刊投稿网站，陈述文教劣良做品.jpg
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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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http://www.hwenz.com/pic/伉俪间挨动的小故事感情小故事短篇热心感情治愈好文.jpg
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