[{"title":"( 2 个子文件 176KB ) 离心泵性能曲线多项式拟合的一种简单方法.zip","children":[{"title":"离心泵性能曲线多项式拟合的一种简单方法","children":[{"title":"离心泵性能曲线多项式拟合的一种简单方法.PDF <span style='color:#111;'> 184.49KB </span>","children":null,"spread":false},{"title":"readme勾月.txt <span style='color:#111;'> 354B </span>","children":null,"spread":false}],"spread":true}],"spread":true}]