因此飞机工程师能做什么呢？
那么飞机工程师是如何做到的呢？
从飞机工程师的观点来看，飞机也是一个结构物。
From an aeroplane engineers point of view, an aeroplane also is a structure.
飞机工程师们多年来探索使用轻质强化碳纤维塑料代替金属部件。
Aircraft engineers have for years sought to replace metal components with lightweight plastics reinforced with carbon fibres.
米姬：一个住在半岛区那边的飞机工程师设计的；他用闲暇的时间发明的。
Midge: An aircraft engineer down the peninsula designed it; he worked it out in his spare time.
飞机工程师面临的最大的一个难题就是飞机零部件承受的周期性疲劳是越来越强的。
The biggest problem aircraft engineers face is that the fatigue cycles a component faces are cumulative.
而麦伦堡则是一位专业的飞机工程师，已经在波音效力了30年之久，深谙军用飞机行业的内部运作。
Meanwhile, his replacement is an aircraft engineer and 30-year Boeing veteran with a deep knowledge of the defense industry's inner workings.
就在几周前，飞机工程师才发现他们并没有完全了解金属疲劳——四月一日，西北航空公司812航班使用的波音737-300型客机在从凤凰城飞往萨克拉门托的途中发现在机身的上半部有一个五英尺的裂纹，不得不紧急迫降。
Over the past few weeks, aircraft engineers have found they do not know quite as much about metal fatigue as they thought.
就在几周前，飞机工程师才发现他们并没有完全了解金属疲劳——四月一日，西北航空公司812航班使用的波音737-300型客机在从凤凰城飞往萨克拉门托的途中发现在机身的上半部有一个五英尺的裂纹，不得不紧急迫降。
Over the past few weeks, aircraft engineers have found they do not know quite as much about metal fatigue as they thought.
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