楼主: why_not
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[声学基础] [求助]请教:尾轴是潜艇机械噪声的主要激励源吗? |
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发表于 2006-7-17 20:13
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发表于 2006-7-19 10:56
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发表于 2006-7-23 17:42
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发表于 2006-7-29 21:06
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谢谢gyp同学推荐的书,能简要介绍一下液压舵机产生脉动冲击噪声的原理吗?
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