数据库错误: [Field 'lasttime' doesn't have a default value]
insert into iplist (ip,system,browser,url,startime) value("10.1.95.41","Unknown","unknown","http://www.bzgroup.cn/?a=view&p=445&r=679","2025-11-01 13:04:25")

组合机床液压体系(图1)中,各种元件和辅佐设备的机构及油液均关闭在液压站及管道和执行元件内,不像机械毛病那样直观,并且测量也不如电器问题便利,不易直接判别。如果先从液压站逐个查看。