| 释义 |
多晶体duōjīngtǐ由许多小晶体组成的晶体。原子在整个晶体中不是按统一的规则排列的,无一定的外形,其物理性质在各个方向都相同。{polycrystal; solid substance composed of aggregates of individual crystals, in which atoms are arrayed irregularly and have no fixed external form, but their physical property is the same in all orientations} |