72
..
....................
72
...
............
73
...
.........................
73
...
.............
75
..
.............
78
...
..........
78
...
........
78
..
....................
78
...
........
79
...
.....
79
..
...........................
79
...
............................
80
..
.......................
التخزين والتخلص
(
ar
13
13.1
13.2
13.3
14
14.1
14.2
15
15.1
15.2
16
16.1
17
57