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2

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6

8

10

12

14

16

18

20

h/a

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1 1.2 1.4 1.6 1.8 2

1

1.5

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2.5

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3.5

4

4.5

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1 1.2 1.4 1.6 1.8 21

1.2

1.4

1.6

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2

2.2

2.4

2.6

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1 1.2 1.4 1.6 1.8 2

0

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1 2 3 4 5 60

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4

5

6

7

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h/R =∞

0.5 1 1.5 2 2.5 3 3.5 40

1

2

3

4

5

6

7

8x 10

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h/R =∞h/R = 2.0

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M & ,@!% Q] a9d #($ 8V$(! @ @ U %! #Z!$ ,B ] a;d #($ 8V$V! @ !% #($ 8V:4@p2

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0 10 20 30 40 502

3

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6

7

8

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2 4 6 8 10 12 14 160

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

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D+_

0 5 10 150

0.2

0.4

0.6

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1

1.2

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∼ h−2

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