Texier指出，当地伐木工人还在鸵鸟蛋壳上刻上几何标记，代表所有权。

Texier points out that until recently, bushmen in the region carved geometric motifs on ostrich eggshells as a mark of ownership.

youdao

采用几何图形特征，符号，标记的设计标准。

Design Standards for Geometric Features, Signals, Signing, Markings.

youdao

采用几何图形特征，符号，标记的设计标准。

Design Standards for Geometric Features, Signing, Markings.

youdao