平へい均きん故こ障しょう時じ間かんMeaningsNoun1. mean time to repair; MTTRKanji used平flat均equalize故past障obstruction時time間intervalComposed of平へい均きんaverage; mean; balance; equilibriumNoun故こ障しょうfault; trouble; breakdown; failure; being out of order; damage (to a part of the body); injury; hurt; problem; hitch; …Noun時じ間かんtime; hour; period; class; lessonNoun