Spherical shell model

Orthotropic Shell

a permeable spherical shell

Concentric three-shell spherical model

laminated shallow spherical shell

Latticed Spherical Shell

mixed model spherical tank

Reticulated Spherical Shell

Shellow Spherical Shell

Single-layer and Double-layer Reticulated Spherical Shell

single-layer spherical shell

spherical model

spherical shell apparatus

spherical shell charge

spherical shell cover

the method of surrounding spherical model

the shallow reticulated spherical shell

thick shallow spherical shell

wall spherical shell

double shell model