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Pendentive
- abstract: A pendentive is a constructive device permitting the placing of a circular dome over a square room or an elliptical dome over a rectangular room.The Columbia Encyclopedia, sixth edition The pendentives, which are triangular segments of a sphere, taper to points at the bottom and spread at the top to establish the continuous circular or elliptical base needed for the dome.
以上来源于: WordNet
柯林斯英汉双解大词典
pendentive /pɛnˈdɛntɪv/
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1.
N any of four triangular sections of vaulting with concave sides, positioned at a corner of a rectangular space to support a circular or polygonal dome 穹隅
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