Complex sentence: The correct identification of body and surface wave polarizations is the key to determining the degree of anisotropy, and that the modeling of many two-phase materials can be simplified by the use of anisotropic elastic-constants.
Split into simpler sentences: The correct identification of body and surface wave polarizations is the key to determining the degree of anisotropy. The modeling of many two-phase materials can be simplified by the use of anisotropic elastic-constants.