run run http://www.unc.edu/~rowlett/units/dictR.html roentgen ratel http://www.unc.edu/~rowlett/units/dictR.html http://www.unc.edu/~rowlett/units/dictR.html run http://www.unc.edu/~rowlett/units/dictR.html How Many? A Dictionary of Units of Measurement How Many? A Dictionary of Units of Measurement ring rep Units: R University of North Carolina at Chapel Hill: Units "R" How Many? A Dictionary of Units of Measurement http://www.unc.edu/~rowlett/units/dictR.html ratel round round