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关注：1
2013-05-23 12:21
求翻译：高效阻性消声片的消声系数（与所用的材料有关）是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
高效阻性消声片的消声系数（与所用的材料有关）
问题补充： |
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2013-05-23 12:21:38
High-resistive film muffler silencer factor (and the materials used for)
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2013-05-23 12:23:18
正在翻译，请等待...
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2013-05-23 12:24:58
Highly effective anti- disappears the sound pictures noise elimination coefficient (with material which uses related)
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2013-05-23 12:26:38
High efficiency resistive muffler noise factor (with the use of building materials-related)
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2013-05-23 12:28:18
High efficiency resistive muffler noise factor (with the use of building materials-related)
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