上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY Surface energy surface tension Y Surface energy with units of dynes per centimeter,or newtons per meter in the SI system. [界面张力] [界面能] SI单位制 N(牛顿)·m1=J(焦耳)·m-2 cgs单位制 dyn(达因)·cm-1=erg(尔格)·cm-2 7Surface energy / surface tension 7