The general inference and demonstration of the equilibrium problem of particle system are carried on, the full and necessary conditions are given while the constraint is ideal, linear and scleronomic.
本文就质点系平衡问题进行了一般性的推证，给出了当约束是理想、线性定常约束时的质点系平衡的充要条件。
This paper studies problems of the existence and the stability of the equilibrium price for the general dynamical market pricing system, and obtains the condition of the equilibrium price stability.
研究了一般动态市场价格系统的均衡价格的存在性和稳定性问题，得到了均衡价格稳定的条件。
The model is comprised of the general rigid-body equations considering apparent mass and the modeling method of suspension system based on the assumption of "equilibrium points".
建立了这类系统的动力学模型，包括考虑附加质量的一般刚体动力学方程和基于“平衡点”假设的吊挂系统建模方法。
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