试验飞行

• experimental aviation
• test flight
• trial flight

例句

1. 飞行员正在驾驶一架新式喷气机作试验飞行。
   The flier is flying a new-type jet plane on trial.
2. 试验飞行员表演新型飞机的性能。
   The test pilots put the new planes through their paces.
3. 试验飞行是为了发现新飞机有何毛病。
   Our test flight was to discover the bugs in the new plane.