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=517&r=491","2025-10-09 18:12:32")
insert into iplist (ip,system,browser,url,startime) value("10.2.166.62","Unknown","unknown","http://bzgroup.com.cn/?a=view&p=517&r=491","2025-10-09 18:12:32")
西德许勒、惠勒公司的BEP液压滑套钻削动力头的进给运动,是由油缸推动主轴滑套来实现的,可完成钻孔、钻深孔、扩孔和铰孔等工序。由于结构简单紧凑,使用方便、可靠,从而得到了比较广泛的应用。
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