A restorer is someone whose job it is to repair old buildings, paintings, or furniture so that they are look like they did when they were new. 修建者; 修补者; 修复者
noun [专属名词]修补者;[计] 复位器;[计] 恢复设备;修建者
The restorer function, when called, puts the original handlers (if any) right back where they were. 调用这个还原器函数时,它会将原始的处理程序放回原处。