卡塔尔航空：已与通用电气航空签署了一份涉及超过400台发动机的协议，为该公司历史上最大的一笔宽体飞机发动机采购。

Core Point - Qatar Airways has signed a historic agreement with General Electric Aviation for the procurement of over 400 engines, marking the largest wide-body aircraft engine purchase in the company's history [1] Group 1 - The agreement involves more than 400 engines [1] - This procurement is noted as the largest in the company's history [1]