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molecular theory 分子(理)論。

molecular weight

This thesis mainly expound how to found atomic - molecular theory and einstein ' s theory on brownian movement and perrin ' s experiment on einstein ' s theory 摘要簡要介紹了原子分子理論的發展過程、愛因斯坦對于布朗運動的理論研究和佩蘭對愛因斯坦布朗運動理論的驗證。

According to molecular theory , all matter is made up of small particles called molecules 根據分子理論,一切物質都是由叫做分子的小粒子組成的。