A[`a

QOPQNWQTs


SiOQ
Zn

u
CaFQ
n

E
CuQ(OH)Q(COR)
PΏn

QOPPNWQOs

Ήp
SiOQ
Zn

Sz
FeSQ
n


S
Εn

H}Kz
MnCOR
Zn