The initial manufacturing release of software is the second in a five-step F-35 software release process leading to first flight.
这次初始版本的软件交付是F-35B首次飞行前5个软件版本中的第2个。
2
Today, commercial aircraft remove ice that accumulates on wings in-flight by redirecting hot air from the jet engines to the leading edge of the wings to keep them warm.
今天，商用飞机主要靠把从喷气式引擎排出的热空气引导到机翼的边缘，使它们变暖，以此来达到除冰的目的。
3
It seemed as though some one had overtaken him in his flight and was leading him back.