Chetaev型非完整系统Appell方程Mei对称性的结构方程和Mei守恒量
Chetaev형비완정계통Appell방정Mei대칭성적결구방정화Mei수항량
Structural Equation and Mei Conserved Quantity of Mei Symmetry for Appell Equations in Chetaev Nonholonomic Systems
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