A certain depth beneath the surface of the ground
application on the surface
applicotion on the surface of grain bulk
black stains in the surface
both ends of the surface
characteristic of the surface
Chiral grafting on the surface
cobalt coated on the surface
colouring on the surface
Continuous reaction on the surface of solid
crack close to the surface
damage depth of the surface
DEFECT ON THE SURFACE OF SHAFt
DEM on the surface of ellipsoid surface
diffusion of atoms on the surface
dislocation near the surface