它由一对同轴的圆筒组成.It consists of a pair of concentric cylinder.样品光谱是通过将小型管固定器与纤维之间同轴的方式获得的.The sample spectra were obtained with the cuvette holder in - line between the fibers....

“同轴的”的英语可以翻译为：coaxial，in-line ...