transmission spectnnn的用法和样例：
例句
- The discrimination of true and false MOUTAI liquor was carried out by using NIR transmission spectroscopy and Gas Chromatrgraphy.
建立了采用近红外透射光谱与气相色谱分析相结合的方式鉴定真假茅台酒的方法及流程。 - The common used method of getting the absorption spectrum is to subtract the background spectrum from the transmission spectrum of the sample.
得到待测样品吸收光谱的通常方法是，将样品的透射光谱和不含样品的背景光谱进行差减计算。
