数据库错误: [Field 'lasttime' doesn't have a default value]
insert into iplist (ip,system,browser,url,startime) value("10.2.166.62","Unknown","unknown","http://bzgroup.com.cn/?a=view&p=445&r=647","2025-10-09 22:14:38")
好的组合机床加工工艺是需求时间不时磨炼,在工作过程中不时决结出来的,这也是为什么要向教师傅讨教的缘由了,这里不做多余的论述,只是引见两个根本准绳:粗精加工分开粗加工普通切削量较大,因而加工进给量也较低。