远场频谱 far-field spectrum
远场谱
Far-field spectrum
以上为机器翻译结果，长、整句建议使用 人工翻译 。
计算结果正确预测出近场中低频段的指向性特点和远场声压级水平，与实测谱值有较好的一致性。
It has been verified that the directional characters in near sound field in low and middle frequency bands and the pressure level in far...
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