他们是半圆形或节段性和方形计划不同的是哥特式拱顶通常是长方形。
They are semi-circular or segmental and on a square plan, unlike the Gothic vault which is frequently rectangular.
杯身外形是圆形或方形、长方形、椭圆形、三角形、多边形状的。
The shape of the cap body is of a fold-type and flexible structure and is round or rectangular, quadrate, elliptical, trilateral, and polygonal.
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