The reappearance and sign-noise ratio of laser Raman spectra of serum are better with the lower laser power and without heparin, which is a chief condition for the diagnosis of breast cancer.
血清不加抗凝素且使用低功率的激光可以得到重现性、 信噪比都较好的谱图，以便利用光谱法诊断疾病。
Advances in optical coating technology over the past decade have made it possible to produce high-performance Raman spectroscopy filters with better reliability and at lower costs.
光学薄膜技术在近十年来取得的进步，为拉曼光谱仪提供了高性能、高品质且低价格的光学滤光片。
This means that the Raman threShold of fibers with slowly decreasing dispersion may be lower than that of conventional fibers.
这意味着色散缓变光纤具有比常规光纤较低的拉曼阈值。
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