Moreover, corresponding to different filter length N and frequency vector setting modes(traditional symmetry or evensymmetry), 4 types of all-phase half-band filters were designed.
并针对不同的滤波器长度N和频率向量的设置（传统对称或偶对称），设计出了4种全相位半带滤波器。
2
Even the sinister bio-mimicry of the Preying Mantis, luring unsuspecting pollinators to their death, has a beautiful symmetry to it.
即使是邪恶的捕食螳螂，它用以引诱不知情者上钩的拟态，也是一个美丽的对称形态。
3
Even the city's stateliest sections lacked Paris's charm and symmetry.