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1 为了帮助在树洞中营巢的鸟的繁殖，作为代替营巢场所而设置的箱子。可根据预定利用此箱的鸟的大小而调整出入口的大小、据说是按 19世纪德国人冯贝尔拉普施（ von Berlepsch）的创见而制造的。
2 收容蜂群之容器。有各种大小和形状。有在圆大中心凿孔，也有用木桶或箱等制成的。休伯（ F． Huber 1789）首先设计了活动的多叶式巢箱，兰斯特罗特（ L． Langstroth）， 1851曾设计了很实用的巢框和巢箱。巢箱的大小可因巢框的大小而异。
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