It should be noted that when using fk, the definition of model format is as belows:
1:
2: when using crust1.0 to get the parameters
these are the points we need to notice.
Besides, the top line which represents just ‘the ground surface‘ or ‘the upper half infinite space‘ should be noticed more.
transfer model derived to fk model format
原文：https://www.cnblogs.com/seisjun/p/10664370.html