[{"title":"( 4 个子文件 141KB ) 30A四路继电器控制板设计PCB+原理图-电路方案","children":[{"title":"30A四路继电器控制板.PcbDoc <span style='color:#111;'> 357.50KB </span>","children":null,"spread":false},{"title":"30A四路继电器控制板.SchDoc <span style='color:#111;'> 200.50KB </span>","children":null,"spread":false},{"title":"FoNfakkIHHT8_27EM9dJLrf328VJ.png <span style='color:#111;'> 20.43KB </span>","children":null,"spread":false},{"title":"FmzPt7A59YHqVF58nRjJ1RnW3FMZ.png <span style='color:#111;'> 27.58KB </span>","children":null,"spread":false}],"spread":true}]