  We suggest the new experimental method to explore the properties of slow
strange mesons at normal nuclear matter density. We show that the $K^{+}$ and
$K^{-}$ mesons with extremely small momenta relative to the surrounding medium
rest frame can be produced in nucleus-nucleon collisions and their production
cross sections are experimentally measurable. The experiments on study of the
momentum dependence of meson-nuclear potentials are discussed.
