[{"title":"( 9 个子文件 11.38MB ) 互换性与技术测量基础 胡凤兰主编","children":[{"title":"新建文件夹","children":[{"title":"第七章_齿轮的互换性.pdf <span style='color:#111;'> 1.73MB </span>","children":null,"spread":false},{"title":"第六章_常用结合件的互换性.pdf <span style='color:#111;'> 1.60MB </span>","children":null,"spread":false},{"title":"第一章 极限与配合.pdf <span style='color:#111;'> 2.39MB </span>","children":null,"spread":false},{"title":"第三章_2_公差原则.pdf <span style='color:#111;'> 1.48MB </span>","children":null,"spread":false},{"title":"绪论.pdf <span style='color:#111;'> 736.97KB </span>","children":null,"spread":false},{"title":"第三章_1_形状与位置公差.pdf <span style='color:#111;'> 1.24MB </span>","children":null,"spread":false},{"title":"第五章_光滑极限量规.pdf <span style='color:#111;'> 708.82KB </span>","children":null,"spread":false},{"title":"第二章 技术测量基础.pdf <span style='color:#111;'> 802.04KB </span>","children":null,"spread":false},{"title":"第四章_表面粗糙度.pdf <span style='color:#111;'> 1.11MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]