[{"title":"( 3 个子文件 82KB ) 短路检测式报警电路-综合文档","children":[{"title":"资料来源.txt <span style='color:#111;'> 60B </span>","children":null,"spread":false},{"title":"0689、短路检测式报警电路","children":[{"title":"短路检测式报警电路.pdf <span style='color:#111;'> 70.76KB </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}]