The sacking of the city of Nanking (Nanjing) by Japanese troops in 1937 during the Sino-Japanese War. Between 40,000 and 300,000 civilians were slaughtered.
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。