求翻译：采购部的职责是制定并完善采购制度和采购流程，制定并实施采购计划，采购成本预算和控制，选择并管理供应商和本部门建设工作是什么意思？

Purchasing department's role is to develop and improve the procurement system and procurement procedures, to develop and implement procurement plans, procurement cost estimates and control, select and manage suppliers and construction work in this sector

正在翻译，请等待...

The purchase department responsibility is formulates and consummates the purchase system and the purchase flow, formulates and implements the purchase plan, the purchase cost budget and the control, chooses and manages the supplier and this department construction work

Purchasing's role is to develop and improve the system of procurement and procurement processes, developed and implemented a procurement plan, purchase cost budget and control, select and manage suppliers and the construction work of the Department

Purchasing department's role is to develop and improve the procurement system and procurement procedures, to develop and implement procurement plans, procurement cost estimates and control, select and manage suppliers and construction work in this sector