2019年12月英語(yǔ)四級(jí)翻譯預(yù)測(cè)及答案：中國(guó)傳統(tǒng)節(jié)日匯總

Measurement, which is called metrology in ancient times, is the important foundation of social development of the modern countries’ economy, science and technology. It has a long history and plays an important role in national welfare and the people's livelihood. Established in 221 BC, in the Qin dynasty, Qinshihuang unified weights and measures, and became a unified system for the measurement of milestone in ancient China. On May 20th, 1875, the signing of the convention on metric, opened up a worldwide to implement new era of modern international system of units of measurement. Based on quantum physics, research and application of modern measurement science and technology, provides more accurate modern metrology technical support for the development of human civilization. In 1999, the 21st international conference on measurement made a decision that since 2000, May 20 is for" World Metrology Day". China's propaganda theme of 2015 is in line with international theme for" measurement and light".

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