[{"title":"( 2 个子文件 144KB ) 中低比转速离心泵叶轮多目标优化设计.zip","children":[{"title":"中低比转速离心泵叶轮多目标优化设计","children":[{"title":"readme勾月机械版.txt <span style='color:#111;'> 572B </span>","children":null,"spread":false},{"title":"中低比转速离心泵叶轮多目标优化设计.PDF <span style='color:#111;'> 157.15KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]