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研究在空间转动变换下，直接采用转轴的方向角与转角描述角动量本征态的演变过程，并建立一般角动量转动矩阵元以及多重转动矩阵元随转角θ的参变数λ（０→θ）演变的路径积分；给出处理泛函（路径）积分为普通多重积分的一般方法。
The paper studies the evolution process of the angular momentum eigenstates directly by using the rotation angle and rotation angle of the rotating shaft under the rotational transformation of space and establishes the parameters of the general angular momentum rotating matrix elements and the multiple rotating matrix elements λ (0 → θ) Evolutionary path integrals are given. The general method of processing functional (path) integrals for ordinary multiple integrals is given.