crystalline powder短语²⁹⁵¹¹ 基本例句 结晶性粉末 Rich Zr PZT nano- crystalline powder was prepared by optimizing the technical process of the sol- gel method, using inorganic salts and water as primary precursors and solvent. 采用溶胶-凝胶技术，以无机盐为主要反应前驱物、水为主要溶剂，通过优化工艺条件制备了富锆 PZT纳米晶。 cnki