The external wall of a warehouse is a reinforced concrete two-way slab which has one simply supported end and three fixed ends, bearing load of triangle.
堆场类建筑的外墙一般按照三边固定一边自由的混凝土双向板，板承受荷载为三角形荷载。
This paper defines the curve triangle and its internal diameter and external diameter.
这篇论文介绍如何使用三角曲线进行轨迹合成。
The service can be subdivided into external service, interactive service and internal service, by which the triangle of service of department store can be constructed.
提出了“商场服务”对商场经营的重要性，将其进一步细分为“外部服务”、“互动服务”和“内部服务”，从而构造了“商场服务三角形”。
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