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Section III of the early copper coinage
The fourth quarter coins
Section Vmonetary value of gold and silver and Improvement System of Units
Yuan, Ming and Qing period in section VIII of the Weights and Measures
Semi-colonial and semi-feudal society in section IX, the reform of weights gucci watches and measures, as well as the implementation of state of the metric system
Twenty-third chapter of ancient Chinese astronomical calendar, the evolution of
Section I of the Western Zhou previous knowledge of astronomy
Section II of the Spring and Autumn period laid the foundation stone of the astronomical calendar system
Han, Wei Qin III system during the maturation of the astronomical calendar
Section IV of the Northern and Southern Dynasties period Five Dynasties and the Sui and Tang dynasties the perfect astronomical calendar system
Section V of the Song and Yuan Dynasties the development of astronomical calendar system peak
Section VI of the Ming and Qing Dynasties of the decline of traditional astronomical calendar and the integration of Chinese and Western astronomy
The twenty-fourth chapter of ancient Chinese achievements in agricultural production
Section I outlines the
Section II of the ancient art of irrigation works and agricultural production tools