however, the average slug length increased quickly near the entrance of flow, and the slug length distribution was developed to be a normal distribution when the coda wave effect was considered.
但是考虑气泡尾波作用时,在入口附近液塞长度平均值增长较快,统计分布沿管轴向呈对数正态分布。
on the basis of the observational data, this paper also discusses the probable reasons causing the variation of the coda wave attenuation rate both before and after strong events.