mobile equilibrium的用法和样例：
例句
- The gravitational binding means that the galaxies and other material within a mature cluster have settled into an overall dynamic equilibrium.
重力束缚的意思是在一个成熟的星系团中，星系与其他物质已经达到稳定的整体动态平衡。 - It is a historical difficult issue that the socialist market economy should solve to realize efficiency and fairness dynamic equilibrium.
实现效率和公平的动态平衡是社会主义市场经济所要解决的一个历史性难题。
