低值易耗采购单编号 purchase_low_orders_code DZ%(y)s%(month)s%(day)s 3 采购订单编号 purchase_order_sequence_code CG%(y)s%(month)s%(day)s 3 服务采购单编号 purchase_service_orders_code FW%(y)s%(month)s%(day)s 3 会议纪要编号 issue_meeting_minutes_code HY%(y)s%(month)s%(day)s 3