The view that some events have no causes. They just happen, and nothing in the previous state of the world explains them. According to quantum mechanics, quantum events have this character. See also determinism.
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。