Figure 7 - 18 ........................................................................................................................................................................ 60
Figure 7 - 19 ........................................................................................................................................................................ 61
Figure 7 - 20 ........................................................................................................................................................................ 61
Figure 7 - 21 ........................................................................................................................................................................ 62
Figure 7 - 22 ........................................................................................................................................................................ 62
Figure 7 - 23 ........................................................................................................................................................................ 62
Figure 7 - 24 ........................................................................................................................................................................ 63
Figure 7 - 25 ........................................................................................................................................................................ 63
Figure 7 - 26 ........................................................................................................................................................................ 63
Figure 7 - 27 ........................................................................................................................................................................ 64
Figure 7 - 28 ........................................................................................................................................................................ 64
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Figure 7 - 32 ........................................................................................................................................................................ 66
Figure 9 - 1 .......................................................................................................................................................................... 69
Figure 9 - 2 .......................................................................................................................................................................... 69
Figure 9 - 3 .......................................................................................................................................................................... 70