农业机械学26

农业机械学26

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Unformatted text preview: ((((((( zn v u v z R z v t v S m m m s m x 60 2 2 = • = = = π ϖ π 在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在在 S x 在在2在105 在 在在在在在在在在在在 在在在在在 z 在在在在在在在在在在在在在在在在在在在在在在在在在 t s =2π/(2ω) 在在在在在在在在在在在在在在 S x 在在在在在在在 在在 n 在在在在在在 ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( C ((( ( (2( 105(((((( C (((((( h c =R(1 ( sinφ c ) ) 2 z 2 ( v t v O O c m m 2 1 ϖ ψ- π + ϖ π = = ((((((((( ψc=arcsin(1 ( hc/R) 在在在在在在在在在 φ ’ c =2π/z+π 在 2φ c ((((((((( (((((((((((( (( ω=u/R )...
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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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农业机械学26

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