During flight test, Boeing must ensure the plane is safe and efficient at full forward and full aft CG as well as any combination between the two.

在飞行检测的时候，波音必须确保在重心在靠前、靠后，或者在前后之间的时候，飞机仍然安全有效。

youdao

During flight test, Boeing must ensure the plane is safe and efficient at full forward and full aft CG as well as any combination between the two.

在飞行检测的时候，波音必须确保在重心在靠前、靠后，或者在前后之间的时候，飞机仍然安全有效。

youdao