phase change material的用法和样例：
例句
- The nucleator of barium hydroxide and its different content for the inorganic phase change material calcium chloride hexahydrate have been studied in this paper.
本文着重研究了以氢氧化钡为成核剂和不同用量的无机相变材料六水氯化钙。 - The microcapsules have core-shell complex structures, in which the tough polymer shells can effectively protect the phase change core materials.
所制得的微胶囊具有核壳双层结构，外层的高分子壳材具备一定的强度和韧性，可对其中的相变材料芯材起到保护作用。
