系列， 范围， 谱， 光谱...

spectrums的音标：...

It got sander's whole amplitude - frequency spectrums through PSD analysis. "通过PSD分析,获得砂光机整体的幅频曲线谱.Results: There are differences in characters of seed surface and UV spectrums.结果两种黄 芪 种子种皮纹饰有差异,紫外吸收峰的数目和位置有所不同.Seco...