Reflectance values express the percentage of light that is reflected back from a surface, the difference having been absorbed or transmitted by the surface.
Definition of AXIAL. 1. : of, relating to, or having the characteristics of an axis.
Recall from mechanics of mater-. ials that the internal forces P. (generic axial), V (shear) and M. (moment) represent resultants of. the stress distribution acting on. the cross section of the beam. Internal Axial Force (P) â¡ equal. in magnitude but opposite in. direction to the algebraic sum. (resultant) of the components in. the direction parallel to the axis of.