只有从频散的斯通利波和弯曲波中提取出相慢度，才有可能进一步求准地层渗透率和横波慢度等参数。
Only when phase slowness is extracted from the Stoneley wave and the flexural wave, can the parameters of formation be obtained exactly, such as permeability and shear slowness.
用全波列记录，不仅可以确定首波的慢度，也可以确定后续波的慢度。
With full-waveform recording, it is possible to determine the slowness not only of the first arrival but also of later arrivals.
为多模式波在时域和频域混叠时提供了另外一种有效的慢度提取方法。
It is effective method of extracting slowness when multiple waves overlap in time and frequency domain.
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