Connecting the crossbeam to the apex of a triangular truss.
连接大梁和三角孔桁梁顶点的支柱。
A massive monument of ancient Egypt having a rectangular base and four triangular faces culminating in a single apex, built over or around a crypt or tomb.
古埃及的一种巨大的纪念塔，有一个矩形的底座和四个三角形的侧面并形成唯一的一个顶点，建于地窟或坟墓之上或周围。
Firstly, sorting the apex of the triangular facets according to ascending order in their slice direction was proposed to filter out redundant vertex quickly;
在综合多种算法优点的基础上，首先提出了对三角面片的顶点按其切片方向进行从小到大排序，以快速滤除冗余顶点；
Leaves opposite, oblong-hastate to triangular-lanceolate, 2-3.5 cm long and0.5-1.5 cm wide, apex acute, base subcordate or truncate; petioles1 cm.
叶对生，长圆状戟形至三角状披针形，长2-3.5厘米，宽0.5-1.5厘米，顶端锐尖，基部近心形或截平；侧脉每边约5条；叶柄长约1厘米。
Leaves opposite, oblong-hastate to triangular-lanceolate, 2-3.5 cm long and0.5-1.5 cm wide, apex acute, base subcordate or truncate; petioles1 cm.
叶对生，长圆状戟形至三角状披针形，长2-3.5厘米，宽0.5-1.5厘米，顶端锐尖，基部近心形或截平；侧脉每边约5条；叶柄长约1厘米。
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