One of the field variables is considered as a function of other variables and time, and the fundamental partial differential equation for the function is established.
将一个场变量取作为其余场变量和时间的函数并对这个函数建立基本偏微方程。
One of the field variables is considered as a function of other variables and time, and the fundamental partial differential equation for the function is established.
将一个场变量取作为其余场变量和时间的函数并对这个函数建立基本偏微方程。
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