The wing of the plane showed signs of metal fatigue.
机翼显示出金属疲劳的迹象。
INTEGRAL TANK, a metal container formed by the wing structure (spars, ribs, skin) for storage of fuel on the airplane.
整体油箱，由机翼结构件梁、肋、蒙皮组成，用来在飞机上储存燃油的金属容器。
Black zinc wraps over the upper level providing a protective metal clad enclosure perched on, and cantilevering beyond, the precast concrete wing walls below.
黑锌板包裹了整个上层空间，形成金属保护层，而在悬臂之下是预制混凝土翼墙。
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