The special mixing state of gas and liquid and the mixing time were measured through optical difference in a agitated tank,in which nitrogen was introduced into the liquid paraffine from the bottom.

• 在液体石蜡中通入氮气的气液搅拌釜中,通过光差法确定特定混合状态和达到该状态的混合时间,研究了多种因素对气液混合时间的影响。进气流量较小时,随进气流量增加,混合时间明显缩短;