| 单词 | 圆拱 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔great room〕A large open room in a private residence often featuring a high or vaulted ceiling and used especially for recreation and relaxation.大厅：位于私人住宅的巨大开放空间，常以高大或是圆拱型的屋顶为特征并特别为娱乐及放松休闲使用美国传统〔pendentive〕A triangular section of vaulting between the rim of a dome and each adjacent pair of the arches that support it.弧三角拱，方墙四角圆穹顶支承拱：拱形结构的三角形部分，位于顶穹边缘和每对支撑此拱形结构的相邻圆拱之间美国传统〔rib〕An arch or a projecting arched member of a vault.圆拱：拱形结构的拱或突出拱形部件美国传统〔rib〕One of the curved pieces of an arch.圆拱弯：拱的弯曲部分美国传统〔ridge rib〕A principal rib of a vault along either the longitudinal or transverse ridge.脊肋柱：沿纵向或横向屋脊的圆拱主肋柱美国传统〔semidiurnal〕Of or relating to the arc described by a celestial body between its meridian passage and its points of rising or setting.半日圆拱：天体在其子午圈与升落位置之间描出的圆拱轨迹的或与之相关的美国传统 |
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