Zhè / zhǒng / tèshū / de / jǐhé / jiégòu / jùyǒu / shuāng / zhōu / qī / xìng / nénggòu / yán / liǎng / gè / dúlì / fāngxiàng / chóngfù / páiliè

这种特殊的几何结构具有双周期性，能够沿两个独立方向重复排列。

This special geometric structure has double periodicity and can repeat its arrangement along two independent directions.