The method of invariant eigen-operator is generalized to the classical system, and the normal coordinate of system is also obtained by using this method.
将不变本征算符方法推广到经典体系，并利用它来求体系的简正坐标。
The method of invariant eigen-operator is generalized to the classical system, and the normal coordinate of system is also obtained by using this method.
将不变本征算符方法推广到经典体系，并利用它来求体系的简正坐标。
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