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研究了多孔金属功能材料─—泡沫铝制成的两种结构的消声器，进行了消声性能对比测试。结果表明，泡沫铝在消除空气动力噪声方面具有优越的性能。
Two kinds of muffler made of porous aluminum functional material-aluminum foam were studied, and the sound-absorbing performance comparison test was carried out. The results show that aluminum foam has superior performance in eliminating aerodynamic noise.