- 谱密度级
- spectrum: n. (pl. -tra ) 1.【物理学】谱，光谱；波 ...
- density: n. 1.稠密；浓厚。 2.【物理学】浓度；密度；比重。 ...
- level: n. 1.水平仪，水准仪；水准测量。 2.水平线，水平面 ...
- density spectrum: 密度谱
- spectrum density: 频谱密度; 谱密度
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spectrum density level中文什么意思
- 谱密度级
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例句与用法
- A sorting method of the helicopter noise sources is given . the temporal waveform and spectrum of the noise signature is analyzed . at last , the sound pressure spectrum density level is estimated with the experimental data taken from a specific navy helicopter
扼要阐述了直升机噪声的产生和分类，考察了直升机信号的波形和频谱特征，并对特定的直升机噪声的声压谱密度级进行了计算。