救援人员应掌握各种建筑物类型的坍塌模式，以确保自身和他人安全。
Rescue workers should understand the patterns in which particular types of buildings collapse, both for their own safety and that of others.
建筑物类型的确定可为3维重建、图像检索等提供重要依据，而实现其自动判断往往是困难的。
Obtaining the type of a building automatically is significant for 3D modeling and image retrieval, but it is very difficult.
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