underground [Adjective] + pipe [Noun]

Strength Strength Dispersion
A:
13
CHISQ:
427.46
AWT:
16,298,295
TTEST:
3.5
G2:
74.4
FAWT:
3.34
MI:
5.12
LOGLOG:
18.96
JD:
0.57
MI3:
12.52
DICE:
0.56
RANGE: