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# å†œä¸šæœºæ¢°å­¦41

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⑴ ⑴⑴⑴⑴⑴⑴⑴ q 1 q 1 = f .L .Z . γ . α , t Z =πd ⑴ =πd Lγαf / t d C ⑴ ⑴⑴⑴⑴⑴⑴⑴ q 2 q 2 = π ⑴ d/2+C ⑴ 2 ⑴ π ⑴ d/2 ⑴ 2 [ ] L = πγL ⑴ d C +C 2 =πd LγC ⑴ C 2 ⑴⑴⑴⑴⑴ γ

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⑴⑴⑴⑴⑴⑴⑴ q = q 1 + q 2 q = πd Lγ （ C + αf / t （ （（ / （（ ⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴ L ⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴ ⑴⑴⑴⑴⑴⑴⑴⑴⑴ L min ≥ （ 1.5~2 （（（（（
L min ≥ （ 1.5~2 （（（（（ ⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴ ⑴⑴⑴⑴ 1.5~2) ⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴

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4 ⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴ ⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴⑴

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## This note was uploaded on 01/30/2012 for the course AGRICULTUR agricultur taught by Professor Tinglina during the Summer '07 term at Nanjing University.

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å†œä¸šæœºæ¢°å­¦41

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