Asked | Open questions | Answered Date Pair Term Level Status Answers (undeclined) Gloss Apr 27 '18 eng>chi Additives can be used in PM materials that remain inert because of solid state s pro closed 2 no Apr 26 '18 eng>chi limited, straight-line traction pro open 2 no Dec 9 '17 eng>chi mitral subannular groove pro open 1 no Asked | Open questions | Answered