noun 下载 🔗分享 球面三角壁，拱肩 The concave triangular sections of vaulting that provide the transition between a dome and the square base on which it is set and transfer the weight of the dome. Examples : "The architect explained that the dome of the new museum would rest on four pendentives, allowing the circular weight to be distributed evenly to the square foundation below. " 建筑师解释说，新博物馆的穹顶将架设在四个球面三角壁上，这样可以将圆形的重量均匀地分散到下方的方形地基上。 architecture building structure 与AI对话词汇游戏阅读练习
