undergravel [Noun] + reverse-flow [Adjective]

Strength Strength Dispersion
A:
5
CHISQ:
297,012.34
AWT:
54,278,522
TTEST:
2.24
G2:
125.18
FAWT:
1
MI:
15.86
LOGLOG:
36.82
JD:
-0.01
MI3:
20.5
DICE:
6.9
RANGE: