?蜂窝结构
... 的 4次方是 The fourth power of 2 i ... 蜂窝结构 alveolar structure; honeycomb formation; honeycomb cellualr structrue; honeycomb cellular structure; honeycomb construction; honeycomb device; honeycomb frame; honeycomb structure; honeycombstructure; sandwich structure construction 层次蜂窝结构 hcs hierarchical cell structure ...