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声学楼论坛 http://www.nju520.com/bbs/
以前自己做了个完整的报告,包括设计尺寸和材料选购,什么都有,
可惜老板后来不要做这个了
遗憾
I can support here.
什么是简易消声室啊?不是指投入多少吧!
Dear friend, Could you share your proposal to me? shuoli@163.com thank you very much in advance!