本文用气相色谱法测定了八对双元气体扩散系数,并详细测定和讨论了温度、压力对扩散系数的影响。为扩散系数的测定提供了一个简单、可靠的方法。 In this paper, eight pairs of binary gas diffusion coefficients were measured by gas chromatography, and the effects of temperature and pressure on the diffusion coefficient were measured and discussed in detail. It provides a simple and reliable method for the determination of diffusion coefficient.