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飞机声学风洞试验
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飞机声学风洞试验
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航空器风洞试验
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Aircraft noise tests in wind tunnel
飞机声学风洞试验
在声学风洞中,在气流速度一定时,测量噪声源的近场和远场噪声的试验。
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Nanchang County Museum
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Nanchuan dashu tea
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