乙烯和反式二氯乙烯在红外光谱的这个区域都无活性.Ethylene and trans - dichloroethylene are both inactive in the infra - red in this region.光谱的原色是红 、 绿、蓝.The primary colors of the spectrum are red, green and blue.原子光谱的研究能给出原子能级信息.Investigation of...

“光谱的”的英语可以翻译为：spectral ...