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。
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However, it is not advisable to use hot update in real time system, because hot update could result in the system leading into an unknown state.
不过，在实时系统中使用热更新并不明智，因为热更新可能导致系统进入未知状态。
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However, it's not advisable to use hot update in a real-time system, because it could result in the system leading into an unknown state.