Rain, or increased rain, produced by seeding clouds artificially with ‘dry ice’ (frozen carbon dioxide), silver iodide, or other appropriate particles, which act as condensation nuclei.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。