在封闭系统中保持不变的物理量
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在封闭系统中保持不变的物理量
a physical quantity that remains constant over time in a closed system
In a closed system, total energy is a conserved quantity.
在封闭系统中,总能量是一个守恒量。
在封闭系统中保持不变的物理量
a physical quantity that remains constant over time in a closed system
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