spectrum purity

例句：

1. 1. The new device has a high spectrumpurity, which is very important forscientific research.
   这款新设备具有很高的光谱纯度，对于科学研究非常重要。
2. 2. The manufacturerclaims that their product hashigh spectrum purity, whichis beneficial to human health.
   制造商声称他们的产品具有高光谱纯度，对人类健康有益。
3. 3. The purity of the spectrum iscrucial for the accuracy of the measurement.
   光谱的纯度对于测量的准确性至关重要。