  Many wave phenomena are related to interactions. Considering once neglected
interactions in some cases, states of large objects and Newton's idea about
measurement, we attempt to modify some concepts and principles of
non-relativistic quantum mechanics. Our modifications may help one to
understand some typical quantum phenomena with near classical and intuitive
ideas without changing past correct results, may mediate some contradictions
logically, and then may partially perfect non-relativistic quantum mechanics.
We also give a review of the argument between Einstein and Bohr about
non-relativistic quantum mechanics simply based on interaction.
