Few remain, perhaps due to their wood roof construction.

或许是由于他们的木建筑屋顶，只有几座得以保存。

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Unfortunately, structural limitations and cost constraints precluded the use of this approach and a more conventional roof construction was adopted.

不幸的是，结构的局限性和成本的限制妨碍了这个方法的应用，于是采取了另一个更传统的屋面构造方式。

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Which illustrates an isometric view of a common form of roof construction.

它展示的是一个普通屋顶结构的轴侧图。

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Sections of a drill which broke through the roof of a rail tunnel came from a construction site above the ground, accident investigators have found.

BBC: Construction drill came from site above rail tunnel

To get the set onto the hotel's roof, the producers used a 300-foot construction crane.

WSJ: How 'Man on a Ledge' Found Its Perch

Unibody construction, in which a vehicle's roof, door frames and floor pan are part of a unified, rigid structure, has made vehicles lighter and stiffer.

CNN: Fat and fast: High-performance gets big