drainage [Noun] + improve [Verb]

Strength Strength Dispersion
A:
12
CHISQ:
147.32
AWT:
8,940,897
TTEST:
3.22
G2:
46.86
FAWT:
6.08
MI:
3.83
LOGLOG:
13.72
JD:
0.66
MI3:
11
DICE:
0.2
RANGE: