通知书.......................................................................1835、签订合同.........................................................................18七、采购服务费.........................................................................1836、采购服务费.......................................................................18第三部份采购项目说明和要求............................................................19技术规格...............................................................................19服务要求...............................................................................19第四部分合同参考条款及格式............................................................20合同参考条款...................................................................201、定义..............................................................................20