>They say that metal surface are rough at a microscopic level, and that >"Energy Release" chemically smooths these rough surfaces, thus reducing >friction.
(Energy Release; chemically smooths; these rough surfaces) (They; say; that metal surface are rough at a microscopic level) Context(They say,List([1, 9))):(metal surface; are; rough at a microscopic level)
They say,List([1, 9))
Energy Release They metal surface
chemically smooths say are
these rough surfaces
that metal surface are rough at a microscopic level
rough at a microscopic level