[{"title":"( 2 个子文件 436KB ) 高频试验箱资料.rar","children":[{"title":"0293、高频试验箱资料","children":[{"title":"高频试验箱资料.pdf <span style='color:#111;'> 454.41KB </span>","children":null,"spread":false},{"title":"使用者请先阅读说明.txt <span style='color:#111;'> 29.69KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]