1.2.1 Three states of matter

所屬欄目：工程流體力學(xué)英文

Matter generally exists in three states: gas,liquid and solid. Liquid and gas arecollectively referred to as fluid. The main difference between fluid and solid is that theyhave different resistance to external forces in terms of mechanical analysis. Solid ......（本文共 1084 字 ）     [閱讀本文] >>


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