Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.
根据变换方程与约束方程显含时间的
价性，提出了定常约束与定常系统判据的同
。
Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.
根据变换方程与约束方程显含时间的价性，提出了定常约束与定常系统判据的同。
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