| 单词 | conservation of mass |
| 释义 | conservation of mass in British Englishnoun the principle that the total mass of any isolated system is constant and is independent of any chemical and physical changes taking place within the system conservation of mass in American Englishnoun Physics the principle that in any closed system subjected to no external forces, the mass is constant irrespective of its changes in form; the principle that matter cannot be created or destroyed Also called: law of conservation of mass, conservation of matter Word origin [1880–85]This word is first recorded in the period 1880–85. Other words that entered Englishat around the same time include: interface, irredentist, jackpot, pari-mutuel, regionalism |
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