"兩個電路" + "信號源" + "整個空間" 才是你們的能量守恒係統。
“部分係統能量不守恒”不是什麽新發現。有意義嗎?
"兩個電路" + "信號源" + "整個空間" 才是你們的能量守恒係統。
“部分係統能量不守恒”不是什麽新發現。有意義嗎?
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