  In the frames of Mims transformation matrix method the equation for nuclear
magnetization are obtained describing the dynamics of nuclear spin-systems with
a strong Larmor and Rabi inhomogeneous broadenings of NMR line in conditions of
their unequlibrium earlier obtained by the statistical tensors method. As
example, properties of proton single-pulse echo and its secondary signals in
probe material (silicon oil) coated on the surface of high-Tc
superconducting-oxides powder and in metallic hydride are presented.
