contract purchasing

例句：

1. 1.The company has signed a contract with the supplier for the purchase of equipment.
   该公司已与供应商签订了购买设备的合同。
2. 2. The contract purchasing process involves negotiating prices and terms with suppliers.
   合同采购过程涉及与供应商谈判价格和条款。
3. 3. The company is committed to maintaining high standards in its contract purchasing activities.
   公司致力于在其合同采购活动中保持高标准。