[KongchangAI]
Unverified82% confidenceFactTime unknown

膨胀比率是关键成本指标:优质压缩砖膨胀比约8-9倍(1kg干砖出7-9L),劣质砖掺杂灰尘杂质仅5-6倍,按膨胀后升数而非重量比较更准确

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82%
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Long-term
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