每架飛機和發動機一樣，都由著自己的壽命，發動機的壽命隨著運轉時間縮減 Every plane,as well as every engine,has its own lifetime.Engine's lifetime is measured in working hours.
以及機身的使用壽命相當於起降次數。 and airframe's lifetime - in the number of takeoffs and landings.
當壽命耗盡，發動機就會被拆下然後換上新的發動機，但是機身通常會被報廢銷燬。 After the end of lifetime,an engine can be demounted and replaced by a new one,but an airframe is often disposed.
這裡就是一個銷燬報廢的米格-31軍用墳場。 Here is one of the military boneyards where disposed MiGs are stored.
一些儀表. Some indicators.
發動機安裝部分. Mounting section of the engine.
許多設備仍在 Equipment….
前蘇聯演員 "Vladimir Pokrovsky"
氮氣充氣和控制裝置。 Nitrogen charging and control schedule.
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