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1.铁器时代的到来,标志着我国社会生产力的显著提高。2.约成书于东汉的《九章算术》,是当时世界上最先进的应用数学,它的出现标志中国古代数学形成了完整的体系。
1. The arrival of the Iron Age marked a significant increase in China’s social productivity. 2. The book “Nine Chapters of Arithmetic” written in the Eastern Han Dynasty was the most advanced applied mathematics in the world at that time. Its appearance symbolized that ancient Chinese mathematics formed a complete system.