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ڵλãֻг
Ӫ̶ֻ1/4ϸѹͼ۸Ʒ̵ʹ
2013-03-29 12:42йֻԭߣ
һ꣬Ӫ̶ֻֻ򹥳ԵأѾռ˵Ͷг1/3ϵķݶֲӪ̵һЩӦãԼĻײͣʹúܶȻҹ򡣲ι㽭ʡֹһԶƻij죬ӪӪҵгȡ36βƷκϸʽΪ1/4ʵ˴۾

ȻԵļ۸Ӫ̶ֻdzͲôĵ¡ijӪӪҵеײͻһֻ⣬DzӪҵģֻеֻƷƳ̵ά޵мάޡ

Ҫά޲ƷԭǺ鷳ҪָƷƵļ飬ȷʵܱޡά޵Ļʱ伫

㽭ʡִ̾˴μֻӪӪҵȡ漰֪Ʒơʾȡ36ֻУϸ9Σϸ27Ρ

ȳƵܡ0.2C5AŵָܵΪֻϸ򡣵ȳĿǽط(52)/min1502沢30ӣزӦը©Һڹǿ԰ȫָꡣ˴μ27βϸֻƷУ20ֻﲻñ׼Ҫ

0.2C5AŵԷŵʱ˵صıǷصʵǿֻûһҪָꡣұ׼Ҫ0.2C5AŵܵķŵʱӦ5Сʱ˴μһθĿϸƶ绰ķͺͽûͨҪڱμУ16ֻĿϸ

⣬ҪǼбһЩѹͼ۸񣬵ǿǵɱǵͶΪҶԼ۸жȳ˳̶Ĺܿؾ΢ɣ˶ֻʹͬһͺһܱƷֻ

ĵַ:http://www.cnonline.org/2013/article/11854.html
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