是的，我想是回音壁那幅。

Yeah, I think the echo chamber.

在回音壁前，游客们不再献祭，而是大声喊叫，希望能听见自己的回声。

At Echo Wall, visitors now offer cries instead of sacrifices, hoping to hear their voices bounce back to them.

本文分析了SOI脊波导的单模条件，结合SOI波导模型提出了内嵌圆式正八边形谐振腔的回音壁模式滤波器。

The single-mode conditions of the SOI-based rib waveguide is first analyzed, and applied to the whispering gallery modes embedded circular octagonal resonator filter.