adj.珠狀的
adv.一滴一滴地
By the surface energy theory, the difference of solid-liquid surface free energy become bigger as vacuum increases.This is good to dropwise condensation. 根據(jù)表面能理論分析可知，真空度越大，等離子管表面的固液表面自由能之差越大，凝結(jié)朝著有利于珠狀凝結(jié)的方向發(fā)展。
