"The change in length of a material as a fraction of its total length due to a change in temperature at a constant pressure. (Linear expansion coefficient a) a =(1/l)(dl/dT)" . "LINEAR THERMAL EXPANSION" . "RDS350504" . "2001.10.11" . "Recorded" . "u82237" . . "LINEAR THERMAL EXPANSION" . "420400" . "POSC V 2.0" .