clam-shell excavator

shell-to-shell distance

(Ag)core·（Au）shell composite nanoparticles

(Au)core(Ag)shell nanoparticle

(Au)core·（Ag）shell（composite） nano-particles

“core shell” structure

“core shell”emulsion polymerization

3 D shell structure

3 dimensional thin shell element

3d inner shell

3D-degenerated shell element

3d-Shell Electrons

660MW low pressure outer shell

a boundary layer theory of shell buckling

a fluid-loaded circular cylindrical shell

a permeable spherical shell

a thin cylindrical shell

AA gun shell

Abalone shell