Complex sentence: Tolerance analysis is the general term for all activities related to the study of accumulated variation in mechanical parts and assemblies, and may be used on other types of systems subject to accumulated variation, such as mechanical and electrical systems.
Split into simpler sentences: Tolerance analysis is the general term for activities related to the study of accumulated variation in mechanical parts and assemblies. Its methods may be used on other types of systems subject to accumulated variation, such as mechanical and electrical systems.