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11

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???????????? P20 (?????????) /(ω ? mm2 /m)

0.040≤d≤0.050

-0.0015

+0.0035

7

0.01851

0.050

+0.0010

+0.0050

12

0.01802

0.090

+0.0010

+0.0050

15

0.01770


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