平方平均數 píng fāng píng jūn shù

DEFINITIONS

  1. root mean square (RMS)
  2. quadratic root

CHARACTERS

平 píng flat, level, even; peaceful
方 fāng a square, rectangle; a region; local
平 píng flat, level, even; peaceful
均 jūn equal, even, fair; all, also
數 shù number; several; count; fate