,
1
...
10
11
12
13
14
15
16
17
18
19
20
21
22
...
39
γ-Fe2O3
. 2-5. , , "
-
400 10 (6 ) c
:
-30-3
1
...
10
11
12
13
14
15
16
17
18
19
20
21
22
...
39
