... sound energy声能 sound insulating material隔声材料 sound oscillation声振荡 ...
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... sounding impulse 探测脉冲 sound insulating material 隔音材料 sound insulation 隔音，隔声 ...
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sound d insulating material 隔声材料
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The utility model relates to a sound insulating material, in particular to a foamed aluminum board made of a porous aluminum material.
本实用新型涉及一种隔音材料，尤其多孔隙铝质材料制成的泡沫铝板。
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