• The power output may run ( or range ) between 2 and 20 ( or range from 2 to 20) watts.
• The polymer concentration varies ( in the range ) from 30 to 175 g/l.
• The amplifier bandwidth extends from 20 to 20,000 cps.
• The dielectric constant of mica is ( or lies ) in the range of 6-8.
• The cadmium content of these byproducts runs ( or ranges ) from 2-3 to 25%.
• The results fall between L and s .