1. A magnetic resonance spectroscopy system comprising: means for applying a static magnetic field to an object under examination; means for applying gradient magnetic fields to the object; means for applying a high frequency pulse to the object; detecting means for detecting a magnetic resonance signal from the object; control means for causing said means for applying gradient magnetic fields, and means for applying a high frequency pulse to operate in a predetermined sequence so as to induce magnetic resonance within the object, wherein said control means includes means for generating a plurality of echo signals corresponding to non-collinearly dependent directions of said gradient magnetic fields; and means for processing data based on the magnetic resonance signal detected by said detecting means to obtain magnetic resonance information, wherein said means for processing data provides a signal that is a function of the components of a diffusion tensor representing translational displacement of spin labeled species for said object on the basis of said plurality of echo signals according to a predetermined relationship between said echoes and said components.